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What times three equals 90?
30
If a dozen eggs cost Rs 36 find the cost of 7 eggs?
Rs 36 = 12 eggs = 1 dozen Rs 3 = 1 egg Rs 21 = 7 eggs
A sum of money becomes Rs 4000 after three years and Rs 8000 after six years on compound interest The sum is .....?
Rs 2000. The amount a after n years of an amount c with interest rate r % is: a = c(1 + r/100)^n After 3 & 6 years of the question there is: Rs 4000 = c(1 + r/100)^3 Rs 8000 = c(1 + r/100)^6 Dividing the second by the first gives: Rs 8000 ÷ Rs 4000 = (c(1 + r/100)^6) ÷ (c(1 + r/100)^3) → 2 = (1 + r/100)^3 Using the first equation and substituting for (1 + r/100)^3 found above: Rs 4000 = c(1 + r/100)^3 = 2c → c = Rs 2000 Alternatively: As it is compound interest, the saved interest also attracts interest; the amount doubles in the 3 years from year 3 to year 6, so it doubles every 3 years. Therefore initially it must be half the value at 3 years → it is ½ × Rs 4000 = Rs 2000.
How do you make a dollar with 16 coins?
3 Qs, 3 Ns, & 10 Ps. 4 dimes and 12 nickels 2 Quarters, 4 Dimes and 10 Pennies.
If a equals 3 and bequals minus 5 then a minus b equals?
If a equals 3 and b equals minus 5 then a minus b equals what
