Number System
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1 + 999 + 692 × 99 is equal to 7 693
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Expression = 1 + 999 + 692 × 99 7 693
Correct Option: B
Expression = 1 + 999 + 692 × 99 7 693 = 1 + 999 × 99 + 692 × 99 7 693 = 1 + (1000 − 1) 99 + 692 7 7 = 1 + 692 + 99000 − 99 7 7 = 693 + 99000 − 99 7
Required answer = 99 + 99000 – 99 = 99000
- The value of (0.3467 + 0.1333) is :
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∴ Required sum = 0.3467 + 0.1333 = 0.4801
Correct Option: B
∴ Required sum = 0.3467 + 0.1333 = 0.4801
- (325 + 326 + 327 + 328) is divisible by
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Expression = 325 + 326 + 327 + 328
= 325 (1 + 3 + 32 + 33)Correct Option: D
Expression = 325 + 326 + 327 + 328
= 325 (1 + 3 + 32 + 33)
= 325 (1 + 3 + 9 + 27)
= 325 × 40, which is clearly divisible by 30.
Hence the given expression is divisible by 30.
- By which number should 0.022 be multiplied so that product becomes 66 ?
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Let required number be p.
According to question ,
∴ 0.022 × p = 66Correct Option: A
Let required number be p.
According to question ,
∴ 0.022 × p = 66⇒ p = 66 = 3000 0.22
- (271 + 272 + 273 + 274) is divisible by
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Expression = (271 + 272 + 273 + 274)
Expression = 271 (1 +2 + 4 + 8)Correct Option: B
Expression = (271 + 272 + 273 + 274)
Expression = 271 (1 +2 + 4 + 8)
= 271 × 15 = 271 × 3 × 5 , Which is exactly divisible by 10.
Therefore required answer is 10 .