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Ashmit can solve 80 % of the problem...

Ashmit can solve 80 % of the problem given in a book and amisha can solve 70% . What is the probability that at least one of them will solve a problem , selected at random from the book ?

A

`0.60`

B

`0.06`

C

`0.94`

D

`0.56`

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The correct Answer is:
C
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ARIHANT SSC-PROBABILITY-INTRODUCTORY EXERCISE -(20.4)
  1. A and B take turns in throwing two dice, the first to throw 9 being ...

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  2. From a pack of 52 cards, two are drawn one by one without replacement....

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  3. Ashmit can solve 80 % of the problem given in a book and amish...

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  4. The probability that A hits a target is 1/3 and the probability...

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  5. A problem of mathematics is given to three students A, B, and C, whose...

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  6. If rs. 2800 is 2/7th of the value of a house, the worth of the house i...

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  7. If 35% of a number is 175, then 175 is what percent of that number?

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  8. An agent gets a commission of 2.5% on the sales of cloth. If on a cert...

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  9. The probability that A can solve a problem is 2/3 and the probability ...

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  10. A person's salary has increased from rs. 14400 to rs. 16200. What is t...

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  11. The probabilites that a student will receive an A,B ,C or D grade...

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  12. The probabilites that a student will receive an A,B ,C or D grade...

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  13. A's salary is 20% less than B's salary. Then B's salary is more than A...

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  14. The price of an article of rs100 is icreased by 20% the again its pric...

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  15. If 50% of (x-y) = 30% of (x+y), then what percent of x is y?

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  16. ajay and his wife kajal , the probability of ajay 's section is...

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  17. ajay and his wife kajal , the probability of ajay 's section is...

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  18. ajay and his wife kajal , the probability of ajay 's section is...

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  19. A speaks truth in 60% and Bin 80% of the cases. In what percentage of ...

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  20. One fifth of a number is 62. What will 73% of that number be?

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