The greatest number among the following : $$0.7 + \sqrt {0.16} ,$$ $$1.02 - \frac{{0.6}}{{24}},$$ $$1.2 \times 0.83,$$ and $$\sqrt {1.44} $$
A. $$0.7 + \sqrt {0.16} $$
B. $$\sqrt {1.44} $$
C. $$1.2 \times 0.83$$
D. $$1.02 - \frac{{0.6}}{{24}}$$
Answer: Option B
Solution(By Examveda Team)
$$\eqalign{ & {\text{0}}{\text{.7 + }}\sqrt {0.16} = 0.7 + 0.4 \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 1.1 \cr & 1.02 - \frac{{0.6}}{{24}} = 1.02 - 0.025 \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 0.995 \cr & 1.2 \times 0.83 = 0.996 \cr & \sqrt {1.44} = \sqrt {\frac{{144}}{{100}}} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\, = \frac{{12}}{{10}} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 1.2 \cr & {\text{ So }}\sqrt {1.44} {\text{ is the greatest}}{\text{.}} \cr} $$Related Questions on Number System
Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:
A. 12, 24, 36
B. 11, 22, 33
C. 12, 24, 32
D. 5, 10, 15
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