a is greater than b ny 2 and b is greater than c by 10, If (a+b+c) =130, then b+c-a=?
25 percent of 30 is 75 percent of what number?
A number consists of 3 digits hose sum is 10 . The middle digit is e3qual to the3 sum of the other two and the number will be increased by 99 if its digits are recersed. The number is-
The batting average for 40 innings of a cricket player is 50 runs. His higest score in an innings exceeds his lowest score by 172 runs. if thse two innings are excluded, the average score of the remianing 38 innings is 48 runs . Find his highst score in an innings
What is the greatest prime factor of(24)2-1?
A train is moving at the3 rate 8 mi/h along a piece of circular track of radius 2500 ft. Through what angle does it turn in 1 min?
N can do a piece of work in 80 days. He works at for 10 fdays and then M alone finishes the remaining work in 42 days. In how much time will N and M, working together , finish the work?
A wheel that had 6 cogs in meshed with a larger wheel if 14 cogs. When the smaller wheell had made 21 revolutions, the number wheel will be-
If a, b, c are the lengths of the sides of a triangle. then which of the following is true?
A man in a train notice that he can count 21 telephone posts in one minute.. If they are known to be 50 meters apart, then at what speed is the train travelling?
If x2-4x+3=0, then wat is the value of )x-2)2?
The sum and difference of the L.C.M and H.C.F of two number are 592 and 518 respectively . If the sum of the numbers be 296. FInd the product of the numbers.
What it the value (s) of p such that 4x2-px+9 is perfect square?
Find two numbers such that their mean proportional is 6 and third proprtaional
If x2+4x+3 is odd, then which oine of the following could be the value of x ?
A student was asked to find the arithmetic mean of the numbers 3, 11. 7 .9, 15, 8, 19 ,17,14 and p. He found the mean to be 12. What should be the number in place of p?
7
3
17
31
After getting two successive discounts, a shirt with a list price of 150 taka is available at 105 taka. If the second discount is 12.5% find the first discount.
WHich is the correct factor analysis of 22x3+125?
(2x+5)(2x2-52x-25)
(2x+5)(2x-52x+25)
(2x+5)(2x2+52x+25)
(2x-5)(2x2-52x-25)
If QP=14. What is the value of P+QP-Q?
The difference between the present ages of A and D is years. Seven years ago. The ratio of their ages was 5:7 respectively. What is D's present age?
If one factor of 2a4+5a3-5a+2 is ( a-1), what is other factor?
∠A and ∠B are supplementary angles. If ∠A=115 then ∠B=?
If (6x-7, 13) = (1,3x+2y), then value of ( x, y)?
a tradesman sold an article at a losst of 20% If the selling price had been inncresed by 100 taka. there would have been a gain of 5% What was the cost price of the aricle?
If f(x) =xx-2 then value of f-1(2)?
If 3x-5y=5 andxx+y=57 then what is th value of x-y is-
what is facetor x3-3x2+4x-4?
Find th area of the triangle formed by the points located at ( 5, 2) , (-9, -3) and (-3, -5).
If 92x+1=81, then x=?
A number x is divided by 7. When this number is divided by 8, 12 and 16 . It leaves a remainder 3 in each case . The least value of x is?