The height of three towers are in the ratio of $5 : 6 : 7$ . If a spider takes $15$ minutes to climb the smallest tower, how much time it will take to climb the highest one?

15

minutes

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18

minutes

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21

minutes

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54

minutes

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Solution

The correct option is B $21$ minutes
$H_{1} : H_{2} : H_{3} = 5 : 6 : 7$
$15$ minutes to climb tower of height $5 x$
$∴$ $21$ minutes to climb tower of height $7 x$

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The height of three towers are in the ratio of 5:6:7. If a spider takes 15 minutes to climb the smallest tower, how much time it will take to climb the highest one?

The correct option is B 21 minutesH1:H2:H3=5:6:715 minutes to climb tower of height 5x∴ 21 minutes to climb tower of height 7x

The height of three towers are in the ratio of $5 : 6 : 7$ . If a spider takes $15$ minutes to climb the smallest tower, how much time it will take to climb the highest one?

The correct option is B $21$ minutes
$H_{1} : H_{2} : H_{3} = 5 : 6 : 7$
$15$ minutes to climb tower of height $5 x$
$∴$ $21$ minutes to climb tower of height $7 x$