Welcome to your 07 Math Name 1. Find the value of 625 × (–35) + (– 625) × 65 Deselect Answer - 62500 62500 - 65300 68900 None 2. Circumference of a circle of diameter 5 cm is Deselect Answer 3.14 cm 31.4 cm 15.7 cm 1.57 cm None 3. Every natural number is a rational number but every rational number need not be a natural number. Deselect Answer True False can’t say None 4. (– 16) ÷ 4 is not same as Deselect Answer ( – 4) ÷ 16 – ( 16 ÷ 4) 16 ÷ (– 4) – 4 None 5. After 10 years Arpit will be three times as old as he was four years ago. What is his present age? Deselect Answer 12 years 10 years 11 years can’t say None 6. Which of the following statements is not true? Deselect Answer When two positive integers are added, we always get a positive integer. When two negative integers are added we always get a negative integer. When a positive integer and a negative integer is added we always get a negative integer. Additive inverse of an integer 2 is (– 2) and additive inverse of ( – 2) is 2 None 7. – 35 × 107 is not same as Deselect Answer – 35 × (100 + 7) (– 35) × 7 + ( – 35) × 100 – 35 × 7 + 100 ( – 30 – 5) × 107 None 8. (-9) × 17 is not equal to: Deselect Answer 9 × (-17) -(17 × 9) (- 17) × (- 9 ) 17 × (-9) None 9. The quantities x and y are positive. If x is decreased by 10 percent and y is increased by 10 percent, then the product of x and y is: Deselect Answer unchanged decreased by 10% increased by 10% decreased by 1% None 10. 4x + 5 = – 7 has_______ solution Deselect Answer 3 1 No -3 None 11. A car manufacturer claimed that CO₂ emissions from a car were 160g/km. Their latest model has emissions at 15% less. What are the CO₂ emissions on the new car? Deselect Answer 126 183 136 163 None 12. What is 60 cm as a percentage of 4 m? Deselect Answer 12% 15% 20% None of these None 13. 4 squares each of the side 10 cm have been cut from each corner of a square sheet of paper of size 100 cm x 100 cm. From the remaining piece of paper, an isosceles right triangle is removed whose equal sides are each of 10 cm length. Find the area of the remaining part of the paper. Deselect Answer 9085 sq cm 9550 sq cm 9568 sq cm 9096 sq cm None 14. If 1m² = x mm² , then the value of x is Deselect Answer 1000 10000 100000 1000000 None 15. In the standard form of a rational number, the common factor of numerator and denominator is always: Deselect Answer 0 1 – 2 2 None 16. One day the temperature in London is 18ºC and in Athens it is 80% higher. What is the temperature in Athens? Deselect Answer 32.4 23.4 98 43.4 None 17. Two rational numbers are said to be equivalent or equal, if they have the same ______ form Deselect Answer Simplest Form Complex Form Non Equivalent Form None of These None 18. Is x=7 a solution of equation 2x-7=9 ? Deselect Answer Yes No Cann't Say None of These None 19. The ratio 3 : 8 is equal to Deselect Answer 3.75% 37.5% 0.375% 267% None 20. The sum which will earn a simple interest of ₹126 in 2 years at 14% per annum is Deselect Answer ₹394 ₹395 ₹450 ₹540 None Time's upTime is Up!
