Probability of getting a head =0.6 =6/10=3/5 Probability of getting not head=1-3/5 =2/5 Direct shortcut- n Cr(P)r(1-P) n-r Then now Probability= =10C3 (3/5)3(2/5)7 = [(10×9×8)/3×2] × (33×27)/510 = (34×210)/59
There are five persons with different heights. D is shorter than R. J is taller than L. U is shorter than J but taller than R. R is not taller than L. W...
How many chocolates does Sanjay possibly have?
W is taller than K who is shorter than U. O is taller than D but shorter than K. U is shorter than W. Who is the tallest?
Among seven students S, T, U, V, W, X and Y. X is heavier than Y but lighter than V. U is heavier than T. S is the heaviest. T is fourth heaviest. W is ...
There are five persons Z, X, V, B and N of different ages. V is older than Z and B, but younger than X, who is not the oldest. Find the oldest person?
E, F, G, H and I are five sisters. G is younger than only two persons. F is older than E but younger than G. I is not the oldest. Who is the oldest?
Seven persons F, G, H, I, J, K, and L have different number of chocolates. Only I has more chocolates than J. K has more chocolates than L and F. F has...
How many boxes are heavier than box P?
Yudhister’s coin is heavier than Nakul’s and costlier than Sahdev’s. Arjun’s coin is costlier than Yudhister’s but lighter than Bhim’s. Sah...
Who is the second heaviest person?
