Question

2. Find a natural number whose square diminished by 84 is equal to thrice of 8 more

than the given number.

3. A natural number, when increased by 12, equals 160 times its reciprocal. Find the

number.

4. A train, travelling at a uniform speed for 360 km, would have taken 48 minutes

less to travel the same distance if its speed were 5 km/h more. Find the original

speed of the train.

5. If Zeba were younger by 5 years than what she really is, then the square of her

age (in years) would have been 11 more than five times her actual age. What is

her age now?

6. At present Asha’s age (in years) is 2 more than the square of her daughter

Nisha’s age. When Nisha grows to her mother’s present age, Asha’s age would

be one year less than 10 times the present age of Nisha. Find the present ages of

both Asha and Nisha.

Answer 1

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