Welcome to your 08 math Name 1. 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 2. 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 Vertical Road. Deselect Answer 300 sq m 420 sq m 320 sq m None of these None 3. The volume of a cylinder whose radius r is equal to its height is Deselect Answer 1/4 πr³ πr³/32 πr³ r³/8 None 4. A carpet of size 5 m x 2 m has 25 cm wide red border. The inner part of the carpet is blue in colour (see the figure). What is the ratio of areas of red portion to blue portion? Deselect Answer 13:27 12:27 27:13 13:28 None 5. ³√1000 is equal to Deselect Answer 10 100 1 none of these None 6. If the height of a cylinder becomes 1/4 of the original height and the radius is doubled, then which of the following will be true? Deselect Answer Total surface area of the cylinder will be doubled. Total surface area of the cylinder will remain unchanged Total surface of the cylinder will be halved. None of the above None 7. Radhika bought a car for Rs 2,50,000. Next year its price decreased by 10% and further next year it decreased by 12%. In the two years overall decrease per cent in the price of the car is Deselect Answer 3.2% 22% 20.8% 8% None 8. What percent is 120 of 90? Deselect Answer 30% 33 1/3% 133 1/3 % 33 2/3 % None 9. The perimeter of a trapezium is 52 cm and its each non-parallel side is equal to 10 cm with its height 8 cm. Its area is Deselect Answer 124 cm² 118 cm² 128 cm² 112 cm² None 10. The height of an equilateral triangle is √6cm, Its area is : Deselect Answer √3 cm² 2√3 cm² 26 cm² 3√3 cm² None 11. An English jeweler sold Rs. 35000 worth of jewels in one month (his ‘turnover’) and made a profit of Rs. 14000. What is his profit as a percentage of his turnover? Deselect Answer 12 % 40 % 20 % 16 % None 12. How many coins 1.4 cm in diameter and 0.4 cm thick is to be melted to form, right circular cylinder of height 16 cm and diameter 3.5 cm Deselect Answer 200 150 250 300 None 13. A perfect square number having n digits where n is even will have square root with Deselect Answer (a) (b) (c) (d) None 14. How many small cubes with edge of 20 cm each can be just accommodated in a cubical box of 2 m edge? Deselect Answer 10 100 1000 10000 None 15. Three cubes each of side 10cm are joined end to end. Find the surface area of the resultant figure Deselect Answer 1600 cm² 1300 cm² 1400 cm² 1288 cm² None 16. The ratio 7 : 4 expressed as a percent equals: Deselect Answer 70% 40% 110% 175% None 17. Which among 43², 67², 52², 59² would end with digit 1? Deselect Answer 43² 67² 52² 59² None 18. Whcih are not perfect square in the following Deselect Answer 16 36 111 81 None 19. If the radius of a cylinder is tripled but its curved surface area is unchanged, then its height will be Deselect Answer tripled constant one-sixth one-third None 20. A mall manager is planning to buy a trampoline. She can choose a square or circular model. The perimeter of the square trampoline is 44 feet and the circumference of the circular model is also about 44 feet. She wants to buy the trampoline with the greater area so the children will have plenty of room to jump and turn. Which model should she buy? Deselect Answer Square Model Circular Model Anyone, as both will have same area None Time's upTime is Up!
