141.

Krishna purchased a number of articles at ₹ 10 for each and the same number for ₹ 14 each. He mixed them together and sold them for ₹ 13 each. Then, his gain or loss per cent is

• loss 

• gain 

• loss 

• gain 

A trader bought two horses for ₹ 19500. He sold one at a loss of 20% and the other at a profit of 15%. If the selling price of each horse is the same, then their cost price are respectively.

• ₹ 10000 and ₹ 9500

• ₹ 11500 and ₹ 8000

• ₹ 12000 and ₹ 7500

• ₹ 10500 and ₹ 9000

The simple interest on a sum for 5 yr is one-fourth of the sum. The rate of interest per annum is

• 5%

• 6%

• 4%

• 8%

The difference between the compound interest and simple interest on ₹ 10000 for 2 yr is ₹ 25. The rate of interest per annum is

• 5%

• 7%

• 10%

• 12%

A student goes to school at the rate of  and reaches 6 min late. If he travels at the speed of 3 km/h, he is 10 min early. The difference (in km) between the school and his house is

• 5

• 4

• 3

• 1

A sum of money placed at compound interest doubles itself in 4 yr. In how many years will it amount to four times itself?

• 12 yr

• 13 yr

• 8 yr

• 16 yr

The following graph shows the demand and production of cotton by 5 companies A, B, C, D and E. Study the graph and answer the questions given below.

The demand for company B is what per cent of the demand for company C?

• 1.5

• 2.5

• 25

• 30

The following graph shows the demand and production of cotton by 5 companies A, B, C, D and E. Study the graph and answer the questions given below.

What is the ratio of companies having more demand than production to those having more production than demand?

• 2 : 3

• 4 : 1

• 3 : 2

• 1 : 4

The following graph shows the demand and production of cotton by 5 companies A, B, C, D and E. Study the graph and answer the questions given below.

What is the difference (in tonnes) between average demand and average production of the five companies taken together?

• 320

• 420

• 2100

• 1050

The following graph shows the demand and production of cotton by 5 companies A, B, C, D and E. Study the graph and answer the questions given below.

The production of company D is how many times that of the production of the company A?

• 1.8

• 1.5

• 0.5

• 0.4