The present ages of Lewis and Brown is 1:2. Three years from now their ages be in ratio 3:5. Find the age of Brown after 5years?

Let

Brown=b

Lewis=l

Present ages be b/l=1:2

2l-b=0....eq(1)

After three years l+3/b+3=3:5

5l-3b=6

By resolving eq

b=12

l=6

After 5 years l= 11

b=17

In a family of six members A,B,C,D,E and F. A and B are a married couple. A being the male member.D is only son of C, who is the brother of A. E is the sister of D. B is the daughter in law of F , whose husband has died. How is E related to C.

A is male and is married to B. so, A is the husband and wife . C is the brother of A.D is the son C . E , who is the sister of D will be the daughter of C . B is the daughter in law of F whose husband is died means F is the mother of A. Clearly E, is the daughter of C ..

The average of 4 quantities is 5. The average of 2 them is 6. What is the average of the remaining two numbers?

The average of 4 quantities is 5.

Therefore,the sum of the 4 quantities is 4 Ã— 5 =20.

The average of two of these 4 quantities is 6.

Therefore, the sum of these three quantities = 2 Ã— 6 = 12

The sum of the remaining two quantities = 20 - 12 = 8.

Average of these two quantities = 8 / 2 = 4.

.
In a family, there are six members A, B, C, D, E and F. A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died. How is F related to C?

Option (C) A is a male and married to B. So, A is the husband and B is the wife. C is the brother of A. D is the son of C. E, who is the sister of D will be the daughter of C. B is the daughter-in-law of F whose husband has died means F is the mother of A. F is the mother of A and C is the brother of A. So, F is the mother of C.

In following alphabet series , one term missing as shown by question mark . Choose missing term from options.

AZ, GT, MN, ?, YB

The first letter of each term is moved six steps forward while the second letter is moved six steps backward to obtain the corresponding letter of the next term..