Six bells commence tolling together, afterwards they toll at intervals of 2, 4, 6, 8,10 and 12 seconds respectively. In 30 minutes, how many times do they toll together?
4
10
15
16
Additional Questions
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if $\dfrac{a}{b}$= $\dfrac{4}{5}$ and $\dfrac{b}{c}$=$\dfrac{15}{16}$,then the value of, $\dfrac{c^{2}-a^{2}}{c^{2}+a^{2}}$ is |
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Find out the odd number in the series given 25, 36, 49,81, 121, 169,225 |
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A can do a certain job in 12 days. B is 60% more efficient than A. How many days does B alone take to do the same job? |
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If 5a=6; 6b = 7; 7c = 5, then find the value of abc. |
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The value of $\sqrt[x]{\sqrt[y]{\sqrt[z]{a}}}$ is |
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How much time will it take for an amount ₹2,000 to double at a simpleinterestrate |
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The length of a rectangle is increased by 60%. By what percent would the width have to be decreased so as to maintain the same area |
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A sum of Rs. 53 is divided among ABC in such a way that A gets Rs. 7 more than what B gets and B gets Rs. 8 more than what C gcts. Thc ratio of their share is |
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A cone, a hemisphcre and a cylinder stand an equal bases and have the same height. Find the ratio of their volunes |
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Select the pair, which are dimensionally alike among the following |
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