1. The sum of the digits of a 2-digit number is 10. If the number is divided by the units digit, the quotient is 3 and the remainder is 4. Find the number. 2. A gardener can mow a lawn in 3 hours. After 2 hours, it rained and he discontinued the work. In the afternoon, a girl completed the rest of the work in 1 hour and 15 minutes. How long would it take the girl to mow the lawn alone?
1. The sum of the digits of a 2-digit number is 10. If the number is divided by the units digit, the quotient is 3 and the remainder is 4. Find the number. 2. A gardener can mow a lawn in 3 hours. After 2 hours, it rained and he discontinued the work. In the afternoon, a girl completed the rest of the work in 1 hour and 15 minutes. How long would it take the girl to mow the lawn alone?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
1. The sum of the digits of a 2-digit number is 10. If the number is divided by the
units digit, the quotient is 3 and the remainder is 4. Find the number.
2. A gardener can mow a lawn in 3 hours. After 2 hours, it rained and he
discontinued the work. In the afternoon, a girl completed the rest of the work in
1 hour and 15 minutes. How long would it take the girl to mow the lawn alone?
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