Number System
- 1.2 × 0.03
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Expression = 1.2 × 0.03
= 1 2 × 3 = 11 × 3 = 1 9 99 9 99 27
= 0.037
Correct Option: D
Expression = 1.2 × 0.03
= 1 2 × 3 = 11 × 3 = 1 9 99 9 99 27
= 0.037
- The value of
999 995 × 999 is 999
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The given expression
= 999 995 × 999 999 = 
999 + 995 
999 999 = 999 × 999 + 995 × 999 999
= (1000 – 1) 999 + 995
= 999000 – 999 + 995
= 999000 – 4 = 998996Correct Option: B
The given expression
= 999 995 × 999 999 = 999 + 995 999 999 = 999 × 999 + 995 × 999 999
= (1000 – 1) 999 + 995
= 999000 – 999 + 995
= 999000 – 4 = 998996
- If * means adding 6 times the second number to the first number then (1 * 2) * 3 equals :
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(2) (1 * 2) * 3 = (1 + 2 × 6) * 3
= 13 * 3 = (13 + 3 × 6)
= 13 + 18 = 31Correct Option: B
(2) (1 * 2) * 3 = (1 + 2 × 6) * 3
= 13 * 3 = (13 + 3 × 6)
= 13 + 18 = 31
- Find the value of
1 + 999 494 × 99 5 495
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1 + 999 + 494 × 99 5 495 = 1 + 999 + 1 − 1 × 99 5 495 = 1 + 999 × 99 + 99 − 99 5 495 = 1 + 98901 + 99 − 1 = 99000 5 5 Correct Option: B
1 + 999 + 494 × 99 5 495 = 1 + 999 + 1 − 1 × 99 5 495 = 1 + 999 × 99 + 99 − 99 5 495 = 1 + 98901 + 99 − 1 = 99000 5 5
- (0.11 + 0.22) × 3 is equal to
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Expression
(0.11 + 0.22) × 311 + 22 × 3 99 99 = 33 × 3 = 99 = 1 99 99 Correct Option: C
Expression
(0.11 + 0.22) × 311 + 22 × 3 99 99 = 33 × 3 = 99 = 1 99 99
