# The number of boys invited were lesser by 2 in comparison to girls

In a birthday party a father invited his son’s friends. The number of boys invited were lesser by 2 in comparison to girls. The father gave Rs. 10 each to boy and Rs. 20 each to girl. If he spent a total of Rs. 280, how many boys were invited?

(a) 8

(b) 10

(c) 12

(d) 14

**Answer: (a) 8. **

**Solution:-
**Let the number of girls be X

The number of boys invited were lesser by 2 in comparison of girls.

Then, number of boys = X – 2

The father gave Rs. 10 rupees each to boys and Rs. 20 each to girl. If he total spent Rs. 280.

Then, 20 X + (X – 2) 10 = 280

20 X + 10 X – 20 = 280

30 X = 280 + 20

30 X = 300

X = 300/30

X = 10

Then, the number of boys X – 2 = 10 – 2 = 8.

Hence, the correct answer is (a) 8.