Question
Five bells commence tolling together and tolls at
intervals of 6, 12, 36, 42 and 60 seconds respectively. In 126 minutes, how many times do they toll together?Solution
First time, 5 bells will toll together on = LCM (6,12,36,42 & 60sec) = 1260 sec = 21 minIn 126 minutes , they will toll together = 126/21 = 6 times But it is also given that they commence tolling together at starting time so answer is 6 + 1 = 7.
Select the number from among the given option that can replace the question mark (?) in the following series.
4, 21, 86, 261, 526, ?
Find the missing number.
Find the missing number.
Select the missing number from the given alternatives:
Study the given matric carefully and select the number from among the given options that can replace the question mark (?) in it.
What will come in the place of question mark?
Find the missing term:
What number should replace the question mark?
Select the missing number from the given responses.
Choose the correct alternative that will complete the given number series. 2, 9, 28, 65, ?, 217
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