Question

Mohan and some amount of money at 9% simple interest and an equal amount of money at 10% simple interest each for two year if his total interest was rs 760 what amount was lent is each case?​

Answer 1

Answer:

Rs. 2000

Step-by-step explanation:

Let the amount invested = Rs. P

According to the questions, ⇔P×9×2 /100+ P×10×2 /100=760

⇔(18P + 20P)100=760

⇔38P = 76000

⇔P = 2000

Alternate

Total interest percent  = (9×2)%+(10×2)%

⇒38%=760

⇒100%=2000

Hence required principal

= Rs. 2000

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