If a:b=2:5, then the value of (2a+3b):(7a+5b) is
If A:B=6:7 and B:C=8:9, the value of C:A is
If a% of x is equal to b% of y, then of c% of y is what % of x ?
If a+b=5 and 3a+2b=20,then (3a+b)will be
If A381 is divisible by 11, find the value of the smallest natural number A?
If an amount becomes four times its normal amount in 15 years from simple interest, what is the rate of annual interest?
If an amount doubles in five year on a fixed rate of interest compounded annually, then in what time the amount will become eight times?
If an area of a square is 16 square metres, its perimeter will be
If an article is sold at 200 percent profit, then the ratio of its cost price to its selling price will be -
If an article is sold for Rs. x, there is a loss of 15%. If the same article is sold for Rs. y, there is a profit of 15%. The ratio of left (y - x) to (y + x) is
