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If the sum of two numbers is 66 and the H.C.F and L.C.M of the numbers are 6 and 120 respectively, then the sum of the reciprocals of numbers is equal to∶
1). 11/120
2). 21/120
3). 15/130
4). 55/120
A 10 km race is organized at 800 m circular race course. P and Q are the contestants of this race. If the ratio of the speeds of P and Q is 5 : 4, how many times will the winner overtake the loser?
1). 4 times
2). 1 time
3). 2 times
4). 3 times
A delegation of 5 members has to be formed from 3 ladies and 5 gentlemen. In how many ways the delegation can be formed, if 2 particular ladies are always included in the delegation?
A). 20
B). 54
C). 42
D). 60
Direction: Read the given information carefully and answer the questions that follow:
There are ten members P, Q, R, S, T, V, W, X, Y and Z in a family. There are three generations of the family. There are also three married couples in the family. There are equal number of males and females. There are two brothers and two sisters. R is the daughter in law of V. P is mother of T. S is mother of P. P has only one son. Both S and X has only two children. R is the mother of Q. Y is the son in law of V. Q is the sister of W. W is the granddaughter of S. P and Y are married couples.
If the four equal circles of radius 3 cm touch each other externally, then the area of the region bounded by the four circles is
1). $4(9-\pi)$ sq. cm.
2). $9(4-\pi)$ sq. cm.
3). $5(6-\pi)$ sq. cm.
4). $6(5-\pi)$ sq. cm.