Kahwai's answer to Anonymous's Secondary 3 E Maths Singapore question.
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Guide is given, please redo
Date Posted:
3 years ago
You've misinterpreted the question.
Accumulated interest is to be more than twice the initial sum, not principal+accumulated interest
Accumulated interest is to be more than twice the initial sum, not principal+accumulated interest
Form equation to that
Can do?
(1.07^n - 1)/0.07 = 2
Solve n
Can do?
(1.07^n - 1)/0.07 = 2
Solve n
See my working in the main comments section
Okay,
Seem right.
Seem right.
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