1.  If + means *, * means -, ÷ means + and - means ÷, then which of the following gives the result of 175 - 25 ÷ 5 + 20 * 3 + 10 ?

77
160
240
2370

```Answer

Answer: Option  A Explanation:175 ÷ 25 + 5 * 20 - 3 * 10 = 7 + 5 * 20 - 3 * 10
= 7 + 100 - 30
= 107 - 30 = 77 ```

Report

2.  If A + D = B + C, A + E = C + D, 2C < A + E and 2A > B + D, then

A > B > C > D > E
B > A > D > C > E
D > B > C > A > E
B > C > D > E > A

```Answer

Answer: Option  B Explanation:2C < A + E, A + E = C + D ==> 2C < C + D ==> C < D   ...(i)
A + D = B + C, C < D ==> A < B   ....(ii)
2A > B + D, A < B ==> A > D   ....(iii)
A + E = C + D, A > D ==> E < C  ....(iv)
From (i), (ii), (iii) and (iv), we get : B > A > D > C > E.  ```

Report

3.  If A + B > C + D, B + E = 2C and C + D > B + E, it necessarily follows that

A + B > 2E
A + B > 2C
A > C
A + B > 2D

```Answer

Answer: Option  B Explanation:A + B > C + D, C + D > B + E, B + E = 2C ==> A + B > 2C. ```

Report

4.  If A + C = D + E, B + 2C = D + 2E, C - E > E - B and 2C > A + D, then

D > B > C > A > E
A > B > C > D > E
D > C > A > E > B
C > B > E > D > A

```Answer

Answer: Option  C Explanation:A + C = D + E ==> C - E = D - A  ...(i)
B + 2C = D + 2E ==> 2C - 2E = D - B ==> C - E = D - B⁄2   ...(ii)
From (i) and (ii) we get : D - A = D - B⁄2 ==> D - B > D - A
==> -B > -A ==> B < A.
B + 2C = D + 2E, 2C > A + D ==> B + A + D < D + 2E
==> B + A < 2E
Now, B + A < 2E, B < A ==>A > E, E >B   ...(iii)
A + C = D + E, A > E ==>C <  D ==> D > C   ...(iv)
2C > A + D, C < D ==> C > A.   ....(v)
From (iii), (iv) and (v) we have : D > C > A > E > B. ```

Report

5.  If A > B, B> C and C > D, then which of the following conclusions is definitely wrong ?

A > D
A > C
D > A
B > D

```Answer

Answer: Option  C Explanation:A > B, B > C, C > D ==> A > B > C > D == > A > D ==> D > A. so, (c) is false. ```

Report