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1).

How many times does the digit 9 occur between 1 and 100?

2).

Find the amount on Rs 6,000 for 1 year at 10% per annum compounded half-yearly.

3).

99 ? 0.99 is equal to: ______.

4).

Sum of the digits of a two digit number is 10 and the digit in the unit's place is more than the digit in the ten's place by 6. What is the number?

5).

By selling a bike for Rs. 8,500, Ravi gets 15% loss. What is the cost price of the bike?

6).

In an examination 38% of students fail in English and 61% pass in Hindi and 23% fail in both. Find the actual failure percentage.

7).

Every second person who died on the road in the accident is pedalist. Every fifth person who died on the road in the accident is cyclist. Find the other percentage of the death on the road in accidents.

8).

In a ratio which is equal to 7 : 8, if the antecedent is 35, what is consequent?

9).

The ratio of the father's age to son's age is 4 : 1. The product of their ages is 196. What will be the ratio of their ages after 5 years?

10).

A man buys a TV for Rs 16000. After two years he sells it for Rs 12800. What is his loss percent?

11).

Devesh purchased a scooter for Rs 5200 and spent Rs 800 on its repairs. He had to sell it for Rs 5400. What is its loss percent?

12).

A sum of money trebles in 4 years. In how many years will it amount to 9 times at the same rate simple interest?

13).

The simple interest on Rs 15000 at 8% per annum for 1 year will be ______.

14).

A cricketer scored 18, 44, 16, 22 and 20 runs respectively in 5 innings being out each time. What is his average score?

15).

Average income of A and B is Rs. 3000 and C and D is Rs. 500. What is the average income of A, B, C and D?

16).

A shopkeeper marks his goods 40% above the cost price and allows a discount of 25% on it. What percent does he gain?

17).

Raju began a business with Rs 2100 and was joined by Shyam with Rs 3600 afterwards. After how many months did Shyam join, if the profits at the end of the year are shared equally?

18).

Pipe A can fill a tank in 30 hours and pipe B in 45 hours. If both pipes are opened in an empty tank, how much will it take to fill it?

19).

A can do half of a certain work in 70 days and B one third of the same in 35 days. They together will do the whole work in:

20).

How long does a train 100 metres long running at the rate of 40 km/h take to cross an electric pole?

21).

Rajesh covers a distance of 60 km from A to B at a speed of 20 kmph and returns from B to A at a speed of 30 kmph by a car. Determine the average speed of the car for the entire journey.

22).

If the ratio between the diameter of two circles is 3 : 1, then find the ratio between the circumference.

23).

Find the volume of a slab of stone measuring 4 m in length, 2 m in width and one-forth m in thickness.

24).

On what principal will the simple interest be Rs 3,000 in 6 years at 5% per annum?

25).

The selling price of a watch is Rs 2,000. If cost price is 3/4 times of its selling price, then find profit or loss as percent.

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