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(B) Let the amount invested in scheme $A$ be $P_A$ and in scheme $B$ be $P_B$.Given,total investment $P_A + P_B = 35000$.For scheme $A$,$S.I. = 3600$,

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$4200$

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(B) Let the amount invested in scheme $A$ be $P_A$ and in scheme $B$ be $P_B$.Given,total investment $P_A + P_B = 35000$.For scheme $A$,$S.I. = 3600$,$R = 12\%$,$T = 2$ years.Using the formula $S.I. = (P_A 	imes R 	imes T) / 100$:$3600 = (P_A 	imes 12 	imes 2) / 100$$3600 = P_A 	imes 0.24$$P_A = 3600 / 0.24 = 15000$.Now,$P_B = 35000 - 15000 = 20000$.For scheme $B$,$P_B = 20000$,$R = 10\%$,$T = 2$ years,compounded annually.$C.I. = P_B 	imes [(1 + R/100)^T - 1]$$C.I. = 20000 	imes [(1 + 10/100)^2 - 1]$$C.I. = 20000 	imes [(1.1)^2 - 1]$$C.I. = 20000 	imes [1.21 - 1]$$C.I. = 20000 	imes 0.21 = 4200$.Thus,the interest accrued in scheme $B$ is $Rs. 4200$.

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