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.
From the given alternatives select the word which cannot be formed using the letters of the given word
INGREDIENTS
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Four number triads have been given, out of which three are alike in some manner and one is different. Select the number triad that is different.
Four number-pairs are given, three among them are alike in certain manner and one is different. Choose the different number-pair.
Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
Four number-pairs are given, three of them are alike in a certain manner and one is different. Choose the different number-pair.
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.
Four numbers have been given out of which three are alike in some manner and one is different. Select the number that is different.
Four number-pairs are given, which of them three are alike in certain manner and one is different. Choose the different number-pair.
Three of the four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
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