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BSF imp questions

A person saves 18% of his income. If his income increases by 6.65% and his savings decrease by 20%, then by what percent will his expenditure increase?

7. 10.5%

2. 10%

3. 12.5%

4. 12%

BSF imp question

The cost price of an article is ₹600. A shopkeeper sells it for ₹680 after giving a discount of 15% on its list price. If he sells it after giving a discount of 10% on its list price, find the profit percentage.

7. 16%

2. 20%

3. 19.5%

4. 15%

BSF imp question

A is 20% less than B, and C is 30% more than A. If B decreases by 20% and C increases by 10%, then C is what percent more than the new value of B?

7. 43%

2. 45.75%

3. 47%

4. 47.25%

If the square of the sum of two numbers is 25, and the square of the difference of the same two numbers is 15, then find their product.

1) 2.5

2)2

3) 3

4)3.5

Find the sum of the cubes of the first nine natural numbers.

1. 2000

2. 2055

3. 2025

4. 2520

The average weight of 35 students in a class is 66 kg. Six students with average weight of 58.5 kg leave the class, and 11 students with average weight of 68 kg join the class. Now what is the average weight (in kg) of the students in the class?

7. 67.675

2. 66.5

3. 68.5

4. 66.375