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Browse complete papersWhen a number is successively decreased by 10 percent, 20 percent and 34 percent, it becomes 10692. What is that number?
22500
22250
22000
25000
Correct answer
22500
Height of a cone is 15 cm and radius of its base is 21 cm. What is the volume of the cone?
7240 cm3
7680 cm3
6930 cm3
6590 cm3
Correct answer
7240 cm3
A train leaves Mumbai at 4:00 pm and travels towards Ahmedabad at a speed of 27 km/h. Another train leaves Ahmedabad at 7 pm and travels towards Mumbai at a speed of 45 km/h. If the distance between Mumbai and Ahmedabad is 513 km, what time will the two trains meet?
11:00 pm
2:00 am
1:00 am
12:00 am
Correct answer
11:00 pm
The average age of 34 students is 17 years. It was observed that when calculating the average age, one student's age was taken as 10 years instead of 8. What would be the correct average age?
15.87 years
16.94 years
17.28 years
19.29 years
Correct answer
15.87 years
Which of the following is the largest two digit prime number?
99
89
97
93
Correct answer
99
Two numbers are in the ratio 3 : 5. If the sum of the two numbers is 96, what is the difference between the two numbers?
36
96
24
48
Correct answer
36
A, B and C are prime numbers such that A < B < C. If A × B × C = 182, then what is the value of B + C?
20
18
22
24
Correct answer
20
A number is decreased by 14.2 percent instead of increasing it successively by 30 percent and 50 percent. The resulting value is what percent of the required correct value?
46 percent
42 percent
44 percent
50 percent
Correct answer
46 percent
If two successive discounts of 20% and 30% are given on an article, then what will be the net discount?
44 percent
50 percent
40 percent
56 percent
Correct answer
44 percent
A 480-meter-long train crosses an electric pole in 20 seconds and another train of the same length traveling in the opposite direction in 30 seconds. What is the speed of the second train?
15 m/s
8 m/s
12 m/s
16 m/s
Correct answer
15 m/s