9. Is the square root of A an integer?

(1) The last digit of A is 8 .

(2) A is divisible by 6.

Statement 1 is sufficient. A perfect square cannot end with 8.

Statement 2 is not sufficient.

If a, b and x, y, are all real numbers and a : b = 2 : 3, then what is (b + 3y) : (3a + 8x)?

I. x : y = 3 : 4

II. x : y = 4 : 5

1)if the question can be answered by using statement I alone but not by using statement II alone.

2)if the question can be answered by using statement II alone but not by using statement I alone.

3)if the question can be answered by using both the statements together but not by either of the statements alone.

4)if the question can be answered by using either of the statements alone.

5)if the question cannot be answered on the basis of the two statements.

Puys plz sove this

I think the answer is

**A**

We have 3a=2b and 4x=3y

We need the value of (b+3y)/(3a+8x). In the denominator, substitute a and x with (2b/3) and (3y/4) respectively. The ratio becomes 1:2.

My ans C.

Thanks

Ashish

@Ashish- How is statement B sufficent? They've just mentioned '2 out of 4 terms'. They haven't mentioned which two terms are 2 and 4. The numbers can be 1,2,3,4 or 2,4,6,8 right? Could you please explain how you got to the answer? My answer would be A

9. Is the square root of A an integer?

(1) The last digit of A is 8 .

(2) A is divisible by 6.

Hi Pratiksha09, Srihari123

Can you Plz Post the OA.?

Thanks

Ashish

If a, b and x, y, are all real numbers and a : b = 2 : 3, then what is (b + 3y) : (3a + 8x)?

I. x : y = 3 : 4

II. x : y = 4 : 5

1)if the question can be answered by using statement I alone but not by using statement II alone.

2)if the question can be answered by using statement II alone but not by using statement I alone.

3)if the question can be answered by using both the statements together but not by either of the statements alone.

4)if the question can be answered by using either of the statements alone.

5)if the question cannot be answered on the basis of the two statements.

Puys plz sove this

Ans 5) can not be answered by both the equation,

consider a=3,b=4 n a=-3,b=-4 ration is same but not the value of (b + 3y) : (3a + 8x).

Thanks

Ashish

Plz post OA soon

Mark (a) if the question can be answered by using the statement A alone, but not by using the statement

B alone.

Mark (b) if the question can be answered by using the statement B alone, but not by using the statement

A alone.

Mark (c) if the question can be answered by using either of the statements alone.

Mark (d) if the question cannot be answered even by using both the statements together but not by

either of the statements alone.

Q-The arithmetic mean of four arithmetic series A1, A2, A3 and A4 is 4, 7, 8 and 9 respectively. What

is the sum of the four arithmetic series?

A- The total number of terms in the four mentioned series A1, A2, A3 and A4 is 3, 7, 9 and 11 respectively.

B- The total number of terms in the four mentioned series is in a Arithmetic Progression. The number

of terms in two out of the four mentioned series is 2 and 4.

**My ans C.**

Thanks

Ashish

If a, b and x, y, are all real numbers and a : b = 2 : 3, then what is (b + 3y) : (3a + 8x)?

I. x : y = 3 : 4

II. x : y = 4 : 5

1)if the question can be answered by using statement I alone but not by using statement II alone.

2)if the question can be answered by using statement II alone but not by using statement I alone.

3)if the question can be answered by using both the statements together but not by either of the statements alone.

4)if the question can be answered by using either of the statements alone.

5)if the question cannot be answered on the basis of the two statements.

Puys plz sove this

Mark (a) if the question can be answered by using the statement A alone, but not by using the statement

B alone.

Mark (b) if the question can be answered by using the statement B alone, but not by using the statement

A alone.

Mark (c) if the question can be answered by using either of the statements alone.

Mark (d) if the question cannot be answered even by using both the statements together but not by

either of the statements alone.

Q-The arithmetic mean of four arithmetic series A1, A2, A3 and A4 is 4, 7, 8 and 9 respectively. What

is the sum of the four arithmetic series?

A- The total number of terms in the four mentioned series A1, A2, A3 and A4 is 3, 7, 9 and 11 respectively.

B- The total number of terms in the four mentioned series is in a Arithmetic Progression. The number

of terms in two out of the four mentioned series is 2 and 4.