# Maths

Mr lee is 56 years old.His nephew, Sam, is 4 years old. In how many years’time will Mr lee be 5 times as old as his nephew?

1. 👍
2. 👎
3. 👁
1. Let's take the number of years asked for as x.

As per the question,

(56 + x) = 5(4 + x)
=> 56 + x = 20 + 5x
=> 36 = 4x
=> x = 9

Hence, the given condition will be satisfied nine years from now.

1. 👍
2. 👎
2. Night and my brother

1. 👍
2. 👎
3. This is correct

1. 👍
2. 👎

## Similar Questions

1. ### Pre Calc

Naturalists findthat the populations of some kinds of predatory animals vary periodically. Assume that the population of foxes in a certain forext vareis sinusoidally iwth time. REcord started being kept when time t = 0 years. A

2. ### Math

Nicole deposited \$2,000 at 6% simple interest. How long will it be before she has \$2,600 in her account? F. 4 Years G. 5 Years H. 6 Years J. 7 Years

3. ### statistik

can you show me the calculation ;) The life expectancy of computer terminals is normally distributed with a mean of 4 years and standard deviation for 10 months. a. What is the probability that a randomly selected terminal will

4. ### calculus

If \$3500 is invested at an interest rate of 5.25% per year, compounded continuously, find the value of the investment after the given number of years. a. 4 years b. 8 years c. 12 years

1. ### math

Sam is 10 years younger than one-half the age of his aunt. Let a represent his aunt’s age. Which shows his aunt’s age written as an algebraic expression and Sam’s age if his aunt is 40? mc020-1.jpg; when mc020-2.jpg Sam is 2

2. ### Pre Calculus

17. population growing at an annual rate r will triple in a time t given by the formula t = ln 3/r If the growth rate remains constant and equals 9% per year, how long will it take the population of the town to triple? a. 6 . 6

3. ### Math

these are the ages of the starting players on Aaron's basketball team what is the average (mean) age of the team Jon - 8 Jim - 9 Bill - 6 Bob -8 aaron -9 A 8 years B 9 years C 8 1/2 years D 6 1/2 years E 7 years My answer is B

4. ### Algebra

The Fresh and Green Company has a savings plan for employees. If an employee makes an initial deposit of \$1000, the company pays 8% interest compounded quarterly. How many years will the employee need to leave the money in the

1. ### Apex personal finance

Mack opened a CD 10 years ago at an interest rate of 7.8% compounded monthly. According to the rule of 72, when did she have half as much money as she does now? A. About 9.2 years ago B. About 4.6 years ago C. About 3.9 years ago

2. ### Business Math

Lee Willis loaned Audrey Chin \$16000 to open Snip Its Hair Salon. After 6 years, Audrey will repay Lee with 8% interest compounded quartly. How much will Lee receive at the end of 6 years?

3. ### math find balance compound interest

i need help i need to find the balance in each compound interest account: \$1400 after 3 years at 5.5% i got: B= P (1 + r) t =1400 (1 + .055)3 I am stuck and don't know how to do this #2 \$1800 after 11 years @ 6.0% #3 \$900 after 10

4. ### algebra

Sam opened a savings account that accrues compound interest at a rate of 3% annually. Let P be the initial amount Sam deposited and let t be the number of years the account has been open. Write an equation to find A, the amount of