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A beaker contain 180 liter alcohol on 1st day

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TCS Other Question

Two circles of radii 5 cm and 3 cm touch each other at A and also touch a line at B and C. The distance BC in cms is?
a. 60−−√
b. 62−−√
c. 68−−√
d. 64−−√
Mother + daughter + infant age is 74. Mother age is 46 more then daughter and infant.
And infant age is 0.4 of daughter. Find daughters age.