1.

compouncu seml-รกnndallyla .DJ 1A person deposited Rs 400 for 2 years, Rs 550 for 4 years, Rs 1200 for 6 yesimple interest of Rs 1020. The rate of interest per annum is-[a] 10% ph 5% [c] 15% [d] 20He received thes.

Answer»

Let the rate of interest be R per cent per annum.400*2*R/100= (500*4*R/100)= (1200*R*6/100)8R+22R+72R= 1020R=1020/102= 10 percentage



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