Math Week Quiz-Grades 9 C

Who is the inventor of logarithms?

• John Napier

• GH Hardy

• Alan Turing

• Euclid

The sum of the ages of the father and son is 55 years. If the father was to live till his son’s age is equals to his present age , the total of their ages would be 93 years. Find the son’s age.

• 18

• 20

• 19

• 21

Who is the father of geometry and the author of elements?

• John Napier

• GH Hardy

• Alan Turing

• Euclid

Nick wants to pave the rectangular patio of his new house. The patio has length 5.25 metres and width 3.00 metres. He needs 81 bricks per square metre. Calculate how many bricks Nick needs for the whole patio.

• 5500

• 5000

• 2800

• 1276

A cashier has Rs 4770. She finds that the number of two-rupee coins is just 15% of 5-rupee coins with her. Find the number of 5-rupee coins.

• 900

• 800

• 950

• 850

For a rock concert a rectangular field of size 100 m by 50 m was reserved for the audience. The concert was completely sold out and the field was full with all the fans standing. Which one of the following is likely to be the best estimate of the total number of people attending the concert?

• 2000

• 2200

• 20,000

• 200

A man when asked how many hens and buffaloes he has, told that his animals have 120 eyes and 180 legs. How many hens and buffaloes has he?

• 22 and 38

• 20 and 40

• 25 and 35

• 30 and 30

In a pizza restaurant, you can get a basic pizza with two toppings: cheese and tomato. You can also make up your own pizza with extra toppings. You can choose from four different extra toppings: olives, ham, mushrooms and salami. Ross wants to order a pizza with two different extra toppings. How many different combinations can Ross choose from?

• 9

• 5

• 7

• 6

The Number “1729” is called his number. Who is he?

• Brahmagupta

• Ramanujan

• Satyendra Nath Bose

• Euclid

The profit earned by a shopkeeper by selling a bucket at a gain of 8 % is Rs 28 more than when he sells it at a loss of 8%. Find the cost price of the bucket.

• 165

• 170

• 175

• 105