Tag: length, mass and capacity

Questions Related to length, mass and capacity

Multiple choice maths length, mass and capacity problems on measurement choosing and converting between units conversion between different units

With the use of three different weights, namely, $1$ gms, $3$ gms, and $9$ gms, how many objects of different weights can be weighed, if the object has to be weighed and the given weights may be placed in either pan of the scale?

  1. $15$
  2. $13$
  3. $11$
  4. $9$
  5. $7$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Weights used No. of weighings possible
1. singly $3$
2. two at a time (Same pan) $3$
3. Three at a time (Same pan) $1$
4. two at a time (diff. pans) $3$
5. three at a time (diff. pans) $3$
Total $13$
Multiple choice maths length, mass and capacity problems on measurement choosing and converting between units conversion between different units

Gayathri bought $1\ kg$ of birthday cake. She shared $450\ g$ with her friends. The weight of cake remaining is $650\ g$.

  1. True

  2. False

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Subtracting the shared portion from the total mass, 1 kg is equal to 1000 g. Subtracting 450 g leaves 1000 minus 450, which equals 550 g, not 650 g. Thus, the statement is false.