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If stair carpet is laid, starting at A, ...

If stair carpet is laid, starting at A, how many centimeters will be required for n steps?

A

`(1)/(2)nh+na`

B

`nh+(1)/(2)na`

C

`2(nh+na)`

D

`nh+na`

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • If NAV of one unit is 250, then how many such units will be required for the investment of 100000?

    A
    400
    B
    200
    C
    4000
    D
    100

  • A word and number arrangement machine when given an input line of words and number rearranges them following a particular rule in each step. The following is an illustration of input and rearrangement. Input 51 pour 32 start now 23 46 house Step I: 23 51 pour 32 start now 46 house Step II: 23 start 51 pour 32 now 46 house Step Step III: 23 start 3 2 51 pour now 46 house Step Step IV: 23 start 32 pour 51 now 46 house Step Step V: 23 start 32 pour 46 51 now house Step Step VI : 23 start 32 pour 46 now 51 house As per the rules followed in the above steps, find out in each of the following questions the appropriate step for the given input. Step II of art input is : 18 task bear cold dish 81 63 31 How many more steps will be required to complete the rearrangement ?

    A
    Three
    B
    Four
    C
    five
    D
    Six

  • John covers x centimetres in one step. How many centimetres does he cover in 9 steps?

    A
    `(x)/(9)`
    B
    9x
    C
    18x
    D
    x + 9

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    Study the following information carefully and answer the given questions : A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule in each step. The following is an illustration of input and rearrangement. Input : 51 pour 32 start now 23 46 house Step I : 23 51 pour 32 start now 46 house Step II : 23 start 51 pour 32 now 46 house Step III : 23 start 32 51 pour now 46 house Step IV : 23 start 32 pour 51 now 46 house Step V : 23 start 32 pour 46 51 now house Step VI : 23 start 32 pour 46 now 51 house And step VI is the last step of the rearrangement. As per the rules followed in the above steps, find out in each of the following questions the appropriate step for the given input. Step II of an input is : 18 task bear cold dish 81 63 31 How many more steps will be required to complete the rearrangement?

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