Question

Please solve this


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Answer 1

Step-by-step explanation:

Principal=X

Rate of interest=10%

Time=4 yrs

Amount = 770

Simple interest {SI}=P×R×T/100

=X×10×4/100

=40x/100

=2/5x=0.4X

Amount=Principal+SI. ( 770)

=X+0.4x

=1.4X

We Know That,above

Principal+SI. = amount

1.4X. ➡️ (X+0.4X)= 770

1.4=770

Transpose 1.4 to the RHS(It will be divided)

X=770÷1.4

X=550

Therefore, principal =Rs.550

Answer 2

Answer:

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