What should come in place of the question mark (?) in the following series ?
For the following questions answer them individually
The ratio of present ages of P and Q is 8 : 5. After 4 years their ages will be in the ratio 4 : 3 respectively. What will be the ratio of P’s age after 7 years from now and Q’s age now?
The average of four consecutive numbers A, B, C and D respectively is 49.5. What is the product of B and D?
The area of a rectangle is twice the area of a tringle. The perimeter of the rectangle is 58cm. What is the area of the triangle ?
‘ A’ ,’B’ and ‘C’ are three consecutive even integers such that four times ‘A’ is equal to three times ‘C’. What is the value of B’?
The simple interest accrued on an amount of Rs 19,800 at the end of three years is Rs 7,128. What would be the compound interest accrued on the same amount at the same rate in the same period ?
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