An MTN cellular-phone user notices that her cellular phone accounts for three consecutive months were significantly different. In May, her account was one and a half times more than her account in June. Her account in July was R 50 more than her account in June. In total, she spent R575 in cellular-phone accounts in the three months. What was her account for each month?
Answers
An MTN cellular-phone user notices that her cellular phone accounts for three consecutive months were significantly different. In May, her account was one and a half times more than her account in June. Her account in July was R 50 more than her account in June. In total, she spent R575 in cellular-phone accounts in the three months. What was her account for each month?
Let say june month account = J
May month account = J + 1.5J = 2.5J
July month account = J + 50
may + june + july = rs 575
J + 2.5J + J + 50 = 575
=> 4.5J = 525
=> J = 525/4d.5
=> J = 116.67
May month account = 2.5 × 116.67 = Rs 291.67
June month account = rs 116.67
July Month account = Rs 166.67
if we say may month = 1.5 J
then
1.5 J + J + J + 50 = 575
3.5J = 525
J = 150
May = Rs 225
June = Rs 150
July = Rs 200