Q. 21. A right angle triangle is rotated along the base. If the perpendicular, hypotenuse and base of the triangle are 8 cm, 10 cm and 6 cm respectively. Find the volume of the cone formed through rotation. ($\pi$=3.14)
(A) 101.44 cm³
(B) 301.44 cm³
(C) 401.44 cm³
(D) 501.44 cm³
Answer:
Explanation:
Q. 22. Sum of two numbers is 44 and their difference is 16. The ratio of these number is :
(A) 12:5
(B) 15:7
(C) 7:9
(D) 11:13
Answer:
Explanation:
Q. 23. The greatest length of the scale that can measure exactly 20 cm, 90 cm, 1 m 25 cm and 1 m 30 cm length is:
(A) 5 cm
(B) 15 cm
(C) 20 cm
(D) 30 cm
Answer:
Explanation:
Q. 24. A woman on vacation travels first 150 km at 60 km/hr and the next 150 km at 25 km/hr The average speed for the first 200 km of the tour is:
(A) 44.44 km/hrs
(B) 66.66 km/hrs
(C) 33.33 km/hrs
(D) 55.55 km/hrs
Answer:
Explanation:
Q. 25. Two employees X and Y are paid a total of 4500 per week by their employer. If X is paid 125 percent of the sum paid to Y, how much is Y paid per week?
(A) ₹1000
(B) ₹2000
(C) ₹3000
(D) ₹4000
Answer:
Explanation:
Q. 26. The price of cooking gas has increased by 25%. By what percent should a family reduce the use of cooking gas so as not to increase the expenditure in this account?
(A) 10%
(B) 20%
(C) 30%
(D) 25%
Answer:
Explanation:
Q. 27. 2 years ago ratio of Sita and Prakash age was 5: 8 respectively. After 4 years this ratio would become 2: 3. Find the present age (in years) of Sita.
(A) 24 years
(B) 30 years
(C) 32 years
(D) 35 years
Answer:
Explanation:
Q. 28. Match List I with List II:
List I
A. Sum of first 5 primes
B. Average of first 5 primes
C. Sum of first 5 natural numbers
D. Average of first 5 natural numbers
List II
I. 15
II. 28
III. 3
IV. 5.6
Choose the correct answer from the options given below:
(A) A-I, B-II, C-III, D-IV
(B) A-II, B-I, C-III, D-IV
(C) A-II, B-IV, C-I, D-III
(D) A-III, B-I, C-II, D-IV
Answer:
Explanation:
Q. 29. Ratio of the averages of first five (05) odd and first five (05) even natural numbers will be
(A) 3:2
(B) 2:3
(C) 6:5
(D) 5:6
Answer:
Explanation:
Q. 30. A bus travelled 3 km distance in 5 second. What is the speed of bus in this distance ?
(A) 2021 km/hr
(B) 2120 km/hr
(C) 2160 km/hr
(D) 2130 km/hr
Answer:
Explanation: