Question

Jassi inherited * 12000.00. She invested part of it
at 10% and the rest at 12% p.a. simple interest. Her
annual income from these investments is * 1280.00.
How much did she invest at each rate.​

Answer 1

EXTRA Question

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In the figure, AO = OD and OB = OC. Then

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In△AOD&△BCO

=>OD=OC (given)

OA=OB(given)

∠AOD=∠COB (vertically opposite)

=>△AOD≅△BOC

∠OAD=∠OBC(angles corresponding to congruent sides)

[∵ AD & BC make equal angles with the same line AB]

HenceAD∣∣BC