L&T Company Numerical Ability Arithmetic

From its total income, A sales company spent Rs. 25,000 for advertising, one-third of the remainder on commissions and had Rs. 12000 left. What was its total income?

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L&T Other Question

A computer printer produced 172,800 lines in a given day. If the printer was in operation for eight hours during the day, how many lines did it print per second? 5 men and 12 boys finish a piece of work in 4 days, 7 men and 6 boys do it in 5
days. The ratio between the efficiencies of a man and boy is?
A. 1:2 B. 2:1 C. 2:3 D. 6:5