# A student, instead of finding the value of 7/8th of a number, found the value of 7/18th of the number. If his answer differed from the actual one by 770, find the number.

1.  1584

2.  2520

3.  1728

4.  1656

4

1584

Explanation :
No Explanation available for this question

# P and Q are two integers such that P Q = 64. Which of the following cannot be the value of P + Q?

1.  20

2.  65

3.  16

4.  35

4

35

Explanation :
No Explanation available for this question

# The average marks of a student in ten papers are 80. If the highest and the lowest scores are not considered, the average is 81. If his highest score is 92, find the lowest.

1.  55

2.  60

3.  Cannot be determined

4.  62

4

60

Explanation :
No Explanation available for this question

# . If the roots, x1,and x2, of the quadratic equation x2 - 2x + c = 0 also satisfy the equation 7x2 - 4x1 = 47, then which of the following is true

1.  c = - 15

2.  x1 = - 5, x2 = 3

3.  x1 = 4.5, x2 = - 2.5

4.  None of the above

4

c = - 15

Explanation :
No Explanation available for this question

# The sum of the areas of two circles which touch each other externally is 153. If the sum of their radii is 15, find the ratio of the larger to the smaller radis

1.  4

2.  2

3.  3

4.  None of these

4

2

Explanation :
No Explanation available for this question

# If m and n are integers divisible by 5, which of the following is not necessarily true

1.  m - n is divisible by 5

2.  m2 - n2 is divisible by 25

3.  m + n is divisible by 10

4.  None of these

4

None of these

Explanation :
No Explanation available for this question

# A man earns x% on the first 2000 rupees and y% on the rest of his income. If he earns Rs700 from Rs 4000 and Rs 900 from Rs 5000 of income, find x

1.  20

2.  15

3.  35

4.  None of these

4

15

Explanation :
No Explanation available for this question

# AB is the diameter of the given circle, while points C and D lie on the circumference as shown. If AB is 15 cm, AC is 12 cm and BD is 9 cm, find the area of the quadrilateral ACBD

1.  54

2.  216?

3.  162?

4.  none of these

4

216?

Explanation :
No Explanation available for this question

# P, Q and R are three consecutive odd numbers in ascending order. If the value of three times P is three less than two times R, find the value of R.

1.  5

2.  7

3.  9

4.  11

4

9

Explanation :
No Explanation available for this question

1.  9

2.  7

3.  4

4.  2

4