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Consider the following statements : A ...

Consider the following statements :
A number `a_(1)a_(2)a_(3)a_(4)a_(5)` is divisible by 9 if
1. `a_(1)+a_(2)+a_(3)+a_(4)+a_(5)` is divisible by 9
2. `a_(1)-a_(2)+a_(3)-a_(4)+a_(5)` is divisible by 9
Which of the above statements is/are correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

Text Solution

Verified by Experts

The correct Answer is:
A
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S CHAND IIT JEE FOUNDATION-POWERS AND ROOTS -UNIT TEST-1
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  2. Which one of the following is correct? The number 222222 is :

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  3. In a division operation, the divisor is 5 times the quotient and twice...

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  4. LCM of two numbers is 16 times their HCF. The sum of LCM and HCF is 85...

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  5. Find the value of sqrt((0. 289)/(0. 00121)) .

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  6. Consider the following statements : A number a(1)a(2)a(3)a(4)a(5) is...

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  7. A bell rings every 5 seconds. A second bell rings every 6 seconds and ...

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  8. if 4^x-4^(x-1)=24 then the value of (2x)^x equals:

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  9. The first twenty natural numbers from 1 to 20 are written next to each...

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  10. x, y and z are the natural numbers. Which of the following statements ...

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  11. The number of prime factors in ((1)/(6))^(12)xx(8)^(25)xx((3)/(4))^(...

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  12. The value of 2/3xx3/(5/6-:2/3\ of\ 1 1/4) is 1/2 (b) 2/3 (c) 1 (d) ...

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  13. If ((1)/(5))^(3y)=0.008, then the value of (0.25)^(y//2) will be

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  14. Simplify : [root(3)root(6)(5^(9))]^(4)[root(3)root(6)(5^(9)]]^(4)

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  15. The value of 0.1bar7 is

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  16. The least values of x and y so that 7x342y is divisible y 88 are

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  17. The total number of 8 digit numbers is

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  18. If X, Y are positive real numbers such that XgtY and A is any positive...

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  19. Assertion (A) : The number 90356294 is divisible by 4. Reason (R ) :...

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