Question

a man takes an interest free loan of rs 1740from his friend agreeing to repay in monthly instalment. he gives rs 200 in the first month and diminishes his monthly instalments by rs 10 each month.how many months will it take to repay loan?

Answer 1

1740-200=1540_1st month
1540-190=1350_2nd month
1350-180=1170_3rd month
1170-170=1000_4th month
1000-160=840_5th month
840-150=690_ 6th month
690-140=550_7thmonth
550-130=420_8th month
420-120=300_9th month
300-110=190_10th month
190-100=90_11th month
90-90=0_12th month
12 months