## Solutions:

#### Ans. 1. (C) Rs 2200

#### Ans. 3 (A) 20% increase

Let the number of the articles sold before the price rise be x at a price of Rs y per article.Sale before the price rise =Rs xy

Sale after the price rise

#### Ans. 4 (B) Rs 480

#### Ans. 5 (A) Rs 60

#### Ans.6 (C) 45: 56

#### Ans.7 (C) 13

#### Ans.8 (B) 30

#### Ans.9 (B) 400

#### Ans.10 (D) 750

Hint: Let the price of the horse be Rs X.

#### Ans.11 (D) 40 paise

#### Ans.12 (B) 100%

**Hint:**C.P. of X = Rs 400, C.P. of Y = Rs 75,

C.P. of Z =Rs 150.