Rajesh sells a machine for Rs 57 lakhs at a loss. Had he sold it for Rs 67 lakh, his gain would have been 7 times the former loss. Find the cost price of the machine.

What should be the missing digit so that the number 347_547 becomes exactly divisible by 11?

The average revenues of 9 consecutive years of a company is Rs 65 lakhs. If the average of first 5 years is Rs 60 lakhs and that of last 5 years is Rs 72 lakhs, find the revenue for the 5th year.

If 3x2 = 102 - 52, find the value of x?

Chutki can bake 30 cakes in 15 hours. Chutki and Badki together can bake 90 cakes in 30 hours. How many cakes Badki can bake in 10 hours?

If (7x -­ 13) ­ (12x + 3) = 14, then the value of x is ______ .

Which was the first garden­-tomb in the Indian subcontinent?

Who is the author of "Life of Pi"?