Tag: conversion of length

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Multiple choice maths how much does it weigh? define weight and units of weight conversion of length measurement (length) basic operations with same units operations involving units of length

A spherical bowl  with diameter  $24$ m. How much it weigh  (approx. in kg)  (if $1$ gm $= 1$ cubic cm).

  1. $7216473.6 kg$
  2. $216473.6 kg$
  3. $721473.6 kg$

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Volume of sphere = 4/3 pi r^3 = 4/3 pi 12^3 = 7238.2 cubic m = 7238230000 cubic cm. Weight in kg = 7238230000 kg. This matches option A closest.

Multiple choice maths how much does it weigh? define weight and units of weight conversion of length measurement (length) basic operations with same units operations involving units of length

Weight of $1$ mango is $250$ gms. Then identify the weight of $16$ mangos. (Write your answer in kilograms)

  1. $1$
  2. $2$
  3. $3$
  4. $4$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
the weight of $1$ mango $=250 $  $gram$

weight of $16$ mangoes $=250 \times 16 = 4000$  $gram$

We know that

$1$  $kg =1000$  $gram$

$1$  $gram =\dfrac1{1000}$  $kg$

Given That, we have to convert $4000$  $gram$  to   $kg$

$4000$  $gm =\dfrac{1}{1000} \times 4000$  $kg$

                    $ =\dfrac{4000}{1000} $  $kg$

                   $=4$  $kg$

So, option $D$ is correct