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kumar
Questions and answers by
kumar
Questions (74)
If y = 18x+5 is the regression line of x on y then the value of bxy is what ?
4 answers
1,866 views
Sundaram joined a company for a fixed salary per month. After few months, the management felt happy with his work and multiplied
12 answers
11,095 views
What resources does an International Internet retailer need other than merely a storefront on the Internet? Does it require
1 answer
762 views
(x/2)+(x/4)+(x/8)=(x-(1/2)) variable domain {(5/7),(6/7),(4/8),(3/7),(2/7)
1 answer
297 views
sir ple. tell me how to make 9v dc motor
how many coil turns i have to make.
1 answer
388 views
Bill Gates didn't _______ ( seem )like a shoe-in for success after dropping out of Harvard and starting a failed first bussiness
2 answers
560 views
A number on being divided by 10 and 11 successively leaves the remainders 5 and 7. Find the number.
3 answers
416 views
A number on being divided by 10 and 11 successively leaves the remainders 5 and 7. Find the number.
ie, x/10 = remainder 5 and
4 answers
1,114 views
HELP ME PLEASE
---- + ------ + ------- = 30 [Using numbers 1,3,5,7,9,11,13 &15]
1 answer
459 views
1.Without using Pythagorus theorm, prove that the points (-4,-3), (-2,2),(8,-2)are the vertices of a right angled triangle.
2.
2 answers
583 views
1.Without using Pythagorus theorm, prove that the points (-4,-3), (-2,2),(8,-2)are the vertices of a right angled triangle.
2.
2 answers
503 views
A teacher driving his vehicle at 24 kmph reaches her school 5 minutes late.If She had driven the vehicle 25% faster on an
4 answers
1,553 views
Ram divided a sum of Rs.3873 among his three sons. His youngest son got 35% less than his oldest son who got 35% more than his
4 answers
1,752 views
An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common
3 answers
862 views
An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common
4 answers
537 views
If a/b =c/d , a^3c + ac^3 = (a+c)^4
show that ----------- ------- b^3d + bd^3 (b+d)^4 pl help.
1 answer
278 views
If a/b =c/d , show that a^3c + ac^3 = (a+c)^4
----------- ------- b^3d + bd^3 (b+d)^4 pl help.
2 answers
567 views
A sum of money becomes 3 times of itself in 20 years. Find its rate of interest?
1 answer
383 views
Of three numbers, second is twice the first and is also thrice the third. If the average of three numbers is 44, find the
5 answers
512 views
By increasing the speed of a car by 10km/hr the time of journey for a distance of 72 km is reduced by 36 min. Find the original
2 answers
975 views
Find four numbers in AP whose sum is 20 and sum of whose squares is 120.
2 answers
753 views
If 6men can do a piece of work in 20 days and one man can do a work of 2 boys.Find how many days can 10 men and 5 boys do the
3 answers
596 views
Tom has a total of 95 beads. He has 20 more red beads than blue beads. He has twice as many white beads as red beads. How many
3 answers
417 views
At a flower shop , there was a total of 494 sunflowers and roses. After 2/5 of sunflowers and 57 roses were sold , the ratio of
1 answer
500 views
20 % of [(7+5-3/12)-6] = ?
5 answers
253 views
sin^2 28*+ sin^2 62* + tan^2 38*- cot^2 52*+ 1/4 sec^2 30* = ?
2 answers
477 views
A flower garden has three times as many red roses as pink roses. Twice the number of red roses is equal to four times the number
2 answers
568 views
If the cost price of an item is 25% of its selling price , what is the % of profit ?
2 answers
547 views
At what rate of % per annum, will the simple interest on a sum of money become 3/4 of the principal in 6 yrs ?
1 answer
468 views
X and Y can together complete a wk in 3 days. If X alone can complete the work in 9 days. In how many days can Y alone complete
1 answer
320 views
Raman completes 50% of a wk in 10 days. Mohan then joins Raman on the 11th day and they together complete the remaining wk in 2
1 answer
476 views
With a uniform speed a car covers a certain distance in 8 hrs. If the speed of the car is increased by 4 km per hour , the same
1 answer
481 views
Prove
SinA/1-CosA = CosecA + CotA
6 answers
2,436 views
he sum of two numbers is 15 the sum of the squares of the same two numbers is 172 fined the difference between the two numbers
2 answers
522 views
Prove that
[1+cotA-CosecA] [1+tanA+secA] = 2
4 answers
1,599 views
sinA+cosA=p and secA+CosecA=q
then show that q[p^2-1]=2p
5 answers
2,741 views
If cosA + sinA= root2 cosA
Show that cosA - sinA= root2 sinA
4 answers
1,136 views
Show that
[1+1/tan^2A][1+1/cot^2A] = 1/sin^2A-sin^4A
1 answer
379 views
a woman is four times older than her daughter five years ago the product of their age was 175 find their present age
4 answers
615 views
A train travels 360 km at uniform speed . if the speed had been 5 km / hr more it would have taken 1 hour less for the same
2 answers
615 views
A and B can do a piece of work in 10 days, B and C in 15 days and A and C in 12 days. A,B and C work together to finish the
3 answers
849 views
4 men & 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10
5 answers
554 views
A man covered a certain distance at some speed. Had he moved 3 kmph faster, he would have taken 40 minutes less. If he had moved
4 answers
667 views
posted by kumar Thursday, March 15, 2018 at 11:51am.
4 men & 6 women can complete a work in 8 days, while 3 men and 7 women can
3 answers
543 views
If [x-y]^2=12 , and xy=2 .
Find x^2+y^2. pl help.
4 answers
328 views
What time will a runner take to run a distance of 8 km at a speed of 15 km/hr?
3 answers
543 views
If square of a number ends with 5,then its cube ends with 25 . Is the statement correct ?
3 answers
394 views
A and B entered into partnership with capitals in the ratio 4: 5. After 3 months, A withdrew ¼ of his capital and B withdrew
4 answers
602 views
A and B entered into partnership with capitals in the ratio 4: 5. After 3 months, A withdrew ¼ of his capital and B withdrew
1 answer
377 views
A and B entered into partnership with capitals in the ratio 4: 5. After 3 months, A withdrew ¼ of his capital and B withdrew
2 answers
544 views
A wheel revolves 1254 times in travelling a distance of 2kms 5 hectometers and 8 meters .find the circumference of the wheel .
2 answers
805 views
In a class of 50 students 25 take hindi and 16 take marathi.12 students take no languages. Find how many takes both hindi and
4 answers
1,020 views
A piece of cloth costs Rs.35. If the piece were 4m longer and each meter were to cost Rs.1 lesser,then the total cost would
2 answers
576 views
2 poles of height 15m and 20m stand vertically upstraight on a plane ground. If the distance between their feet is 12m. Find the
2 answers
511 views
simplify - 4.6*-4.6/(-4.6+0.6)
2 answers
630 views
2 cos ( x – pie/2) + 3 sin (x + pie/2) - (3sin x + 2cos x )
4 answers
470 views
If the length and breadth of a rectangle is increased by 25%,find the difference between the areas of the old and new
5 answers
799 views
The product of 2 numbers is 24,and the sum of their squares are 52.Find their sum.
4 answers
1,571 views
Sundaram joined a company for a fixed salary per month. After few months, the management felt happy with his work and multiplied
3 answers
1,011 views
1. If the graph of a polynomial intersects the x – axis at three points, then the number of zeroes = _____
Q2 . The zero of the
3 answers
1,777 views
If x=22x3x52 and y=22x33 then HCF[xy] = ?
3 answers
410 views
Yash designs and builds handmade wooden furniture. He is designing a new box to
have a volume of 48 cubic feet. All the boxes he
4 answers
1,085 views
3 men & 7 women can complete a work in 10 days, while 4 men and 6 women can complete it in 8 days. In how many days will 10
6 answers
314 views
A boat goes 30km upstream and 28km downstream in 10 hours. In 7 hours, it can go 21 km upstream and 21 km downstream then to
1 answer
317 views
Find the coordinates of two more points on the line joining (-1, 4) and (1, 2).
2 answers
789 views
If A = {(x, y)/x^2 + y^2 = 25} and B{(x, y)/x^2 + 9y^2 = 144} then A ∩ B contains how many points.
2 answers
135 views
the distance between the pair of parallel lines x^2+2xy+y^2-6x-6y+8=0 is-------------
4 answers
1,277 views
The following errors were detected in the books of Shreay Ltd. while preparing the final accounts:(i) A Cheque received for ~
1 answer
229 views
Stock on 15 th April, 2008 is~ 50,000. Purchases made in 2 ndweek is ~ 2000, sales made in 2 ndweek is ~ 12,000 Gross Profit
1 answer
202 views
OPENING DEBTORS ~ 35,000 Cash Received fromDebtors is ~ 30,000 Cash sales is~ 20,000 which is 20% of totalsales. B/R Received
1 answer
208 views
Sundaram joined a company for a fixed salary per month. After few months, the management felt happy with his work and multiplied
1 answer
299 views
8 x cubed -7 x squared + 10 x - 5 divided by 2 X + 1
1 answer
136 views
An agency supplies bread and jams to three places -a hospital, a bank and a school. Bread comes in a bunch of 8 pieces and Jam
2 answers
133 views
An agency supplies bread and jams to three places -a hospital, a bank and a school. Bread comes in a bunch of 8 pieces and Jam
2 answers
110 views
