CTET Class I to V 2015 Sep Paper

Question : 54 of 150

Marks: +1, -0

Which one of the following is not correct?

25 hundredths = 25 100
0.57 is the same as 0.5700
Area of a square of side 30 cm is the same as the area of a rectangle 4.5 m × 0.2 m
2009 millilitres = 2 litres 9 millilitres

Solution:

Going options by option-
(a) 25 hundredths in decimal

=0.25

(b) option (b) also correct
(c) Area of square

=30 × 30=900 {cm}^{2}

Area of rectangle

=(4.5) {m} ×(0.2) {m}=0.9 {m}^{2}

\;\; =(0.9 × 100 × 100) {cm}^{2}=9000 {cm}^{2}

Hence, option(c) is not correct.
(d) 2009 millilittres

=2000

millilitres +9 millilitres = 2009 millilitres

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