Question

The sum of two numbers is 50. One number is 10 less than three times the other number. What are the two numbers?

A
25 and 25
B.
45 and 5
C.
15 and 35
D.
E
40 and 10
20 and 30
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Answer 1

C. 15 and 35

Step-by-step explanation:

3 x 15=45-10= 35

15+35=50

So C. is correct

Answer 2

C

Explanation:

Let the two no.s be x and y

x+y=50 -------(I)

Condition 2:

x=3y-10 -------(2)

Putting eq 2 into 1

3y-10+y=50

4y-10=50

4y=50+10

4y=60

Dividing both sides by 4

y=15

Putting the value of y in 2

x=3(15)-10

x=45-10

x=35