Welcome to your 07 Math Free Name 1. A certain freezing process requires the room temperature to be lowered from 50ºC at the rate of 8ºC every hour. What will be the room temperature 7 hours after the process begins? Deselect Answer -106ºC 106ºC 6ºC -6ºC None 2. Mohan bought a Mobile for ₹ 9000 and sold at the loss of ₹ 900.Find the selling price of the mobile. Deselect Answer 9900 8100 8900 9100 None 3. All decimal numbers are also rational numbers. Deselect Answer True False Can’t Say None 4. A rectangular park of length 70 m and breadth 50 m is there in a locality. Two crossroads perpendicular to each other of width 6 m needs to be constructed in between the park for walking. Find the area of Horizontal Road. Deselect Answer 320 sq m 420 sq m 300 sq m None of these None 5. Area of a right angled triangle is 30 sq cm. If its smallest side is 5 cm, then its hypotenuse is: Deselect Answer 14 cm 13 cm 12 cm 11 cm None 6. The sum of any two negative integers will be: Deselect Answer Negative integer Positive integer Positive, if the first number is larger Negative, if the first number is larger None 7. 0.08 is equal to Deselect Answer 80% 8% 0.8% 0.08% None 8. When a number is multiplied by 5 is increased by 80, what is the number? Deselect Answer 15 20 25 30 None 9. Area of a rectangle and the area of a circle are equal. If the dimensions of the rectangle are 14 cm x 11 cm, then radius of the circle is : Deselect Answer 21 cm 10.5 cm 14 cm 7 cm None 10. 4x + 5 = – 7 has_______ solution Deselect Answer 3 1 No -3 None 11. Find the value of 45% of 280 + 28% of 450 Deselect Answer 252 286 205 282 None 12. A number has two digits whose sum is 9. If 27 is added to the number; its digits get interchanged. Find the number. Deselect Answer 27 36 63 45 None 13. Every integer is a rational number but every rational number need not be an integer. Deselect Answer True False Can’t Say None 14. If the diagonal of a square is 40 m then its area will be : Deselect Answer 1600 sq m 200 sq m 400 sq m 800 sq m None 15. A piece of string is 36 cm long. What will be the length of each side. If the string is used to form an equilateral triangle? Deselect Answer 15 cm 14 cm 12 cm None of these None 16. Write 114 ÷ 207 as rational number in its standard form Deselect Answer 83/69 32/96 38/69 Can't Say None 17. The height of a plant is x meter now. It becomes Y times its self after one week. What will be height after two weeks? Deselect Answer x+y xy 2xy None of these None 18. There are _______ number of rational numbers between two rational numbers. Deselect Answer Two One Unlimited None of These None 19. (-9) × 17 is not equal to: Deselect Answer 9 × (-17) -(17 × 9) (- 17) × (- 9 ) 17 × (-9) None 20. Every integer to the left of zero on the number line will have a _______value. Deselect Answer Negative Positive Can’t say None Time's upTime is Up!