John can complete a journey in 19 hours. He travel first half of the journey at the rate of 21 kilometre per hour and second half at the rate of 24 km per hour. Find the total journey in kilometre?

Let the total distance b x kilometre. Then,

15x=168x20

x=[(168x20)/15]=224 km.

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A garden have three types of flowers rose ,Jasmine and Lily . The flowers are in the ratio of 2 to 3to 5. If the garden has 30 roses, how many flowers does it have all together?

Ratio of flowers

Rose: Jasmine :Lily

2:3:5

If 30 roses in garden

30 / 2 = 15

2 x 15 :3 x 15:5 x 15

30 :45:75

Then total flowers are

30 + 45 + 75 = 150

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There are six persons A, B, C, D, E and F.
C is the sister of F. B is the brother of E's husband. D is the father of A and
grandfather of F. There are two fathers, three brothers and a mother in the
group. How many male members are there in the group?

Option (D)

D is father of A and grandfather of F. So, A is father of F. Thus, D and A are the two fathers. C is the sister of F. So, C is the daughter of A. Since there is only one mother, it is evident that E is the wife of A and hence the mother of C and C and F. So, B is brother of A. There are three brothers. So, F is the brother of C. A, the father, is male. B, the brother, is male. C, the sister, is female. D, the grandfather, is male. E, the mother, is female. F, the brother, is male. So, there are four males.

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Find a five digit number which has no zeros nor ones in it and no digit is repeated,where:

The fourth digit is a quarter of thee total of all the digits, Second digit is twice the first digit,Third digit is the largest and last digit is the sum of the first two digits

Remember the figure must not contain any ones or zeros.

A family consists of 6 member P, Q, R, S, X, Y and Z. Q is the son of R but R is not mother of Q. P and R are a married couple Y is the brother of R. X is the daughter of P. Z is the brother of P. How many female members are there in the family ?

Q is the son of R but R is not the mother. So, R is the father of Q. P is married to R. So, P is the wife of R and the mother of Q. X is the daughter of P and hence of R and so, she is sister of Q. Y is the brother of R and Z is the brother of P. There are two females only a mother P and daughter X..

Bombay Express left Delhi from Bombay at 14.30 hours, travelling at a speed of 60 km per hour and Rajdhani Express left. Delhi from Bombay on the same day at 16.30 hours, travelling at the speed of 80 kilometre per hour. How far away from Delhi will the two trains meet?

Suppose they meet x hours after 14.30 hours.

Then 60 x =80 (x-2) or x=8

Required distance=(60*8)km

=480 km.

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