1. Six more than 5 times a number equals 31.
Find the number.
2. I will be 40 years old after 25 years. What is
my present age?
3. Aman has 25 marbles more than half of
the marbles that Rajiv has. If Aman has 40
marbles, how many marbles does Rajiv have?
Answers
Answered by
7
Answer:
the number is 5
my present age is 15 years
30 marble
Attachments:
Answered by
6
Answer:
1. let the number as x
6 + 5x = 31
5x = 31 - 6
5x = 25
x = 5 .
3. let the number of marbles which rajiv has as r
25 + r * 1/2 = 40
25 + r/2 = 40
r/2 = 40 - 25
r / 2 = 15
r = 15 × 2
r = 30
number of marbles rajiv has is 30
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