Question

9.) A sum of money kept in a bank amounts to 1240 in 4 years and 1600 in 10 years at simple interest.find the sum

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Answer 1

Answer:

Principal+Interest for 4years=Rs.1000

Principal+Interest for 12years=Rs.1400

∴Interest for 8 years=Rs1400-Rs1000

=400.

∴Interest for 1 years=Rs8400=Rs.50

∴Interest for 4 years=Rs4×50=Rs.200

∴Sum carried every year=Rs.1000-Rs.200

=Rs.800

Answer 2

Answer:

Step-by-step explanation:

1240/4=310.

1600/10=160.