Of the two boys one was taller than the other by 15 cm; the shorter boy has grown by 9 cm and the taller boy has grown by 5 cm, and at present the difference of their heights is 1/15 the of the height of the taller boy. What were their former heights?
Answer:
Difference before = 15 cm
Difference now = 15 + 5 - 9 = 11 cm
now, 11cm = 1/15 of the taller
therefore the height of the taller boy = 11 x 15 = 165 cm
The former ht. of the taller boy = 160 cm
The former ht of the shorter boy = 145 cm
Answer:
Difference before = 15 cm
Difference now = 15 + 5 - 9 = 11 cm
now, 11cm = 1/15 of the taller
therefore the height of the taller boy = 11 x 15 = 165 cm
The former ht. of the taller boy = 160 cm
The former ht of the shorter boy = 145 cm
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