Math, asked by bp07, 1 year ago

help me out please............... .....

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Answered by prityrajesh14
1
let rate be r%
ATP
M.V =P*N+P*N( N+1) R/2*12 *100
31080=1600*18+1600*18*+9*R /2*12*100
31080=28800+228R
31080-2880=228R
2280/228=R%
10%
Answer : 10%
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