1. Find the quotient if it is known that it is 6 times larger than the dividend and 15 times larger than the divisor.
Answer: 2.5. Solution. Let the quotient be $a$. Then the dividend is $a / 6$, the divisor is $a / 15$, and the quotient is $(a / 6):(a / 15)=15 / 6=2.5$.