Ques 31 : Choose the correct answer.

The ratio of two numbers is 3:4 and their HCF is 4.Their LCM is:

Option 1 : 12 Option 2 : 16 Option 3 : 24

Ques 32 : Choose the correct answer.

A rectangular courtyard 3.78 meters long and 5.25 meters wide is to be paved exactly with square tiles ,all of the same size. What is the largest size of the tile which could be used for the purpose?

Option 1 : 14 cm

Ques 33 : Choose the correct answer.

The least perfect square which is divisible by 3, 4, 5, 6, 8 is:

Option 1 : 900 Option 2 : 1200 Option 3 : 2500

Ques 34 : Choose the correct answer.

What will be obtained if 8 is subtracted from the HCF of 168, 189, and 231?

Option 1 : 15 Option 2 : 10 Option 3 : 21

Ques 35 : Choose the correct answer.

The largest four digit number which is a multiple of 8, 10,12 and 15 is:

Option 1 : 120 Option 2 : 9600 Option 3 : 9840

Ques 36 : Choose the correct answer.

If logx (0.1) = -1/3, then the value of x is:

Option 1 : 10 Option 2 : 100

Ques 37 : Choose the correct answer.

If ax = by, then:

Option 1 : log(a/b) = x/y Option 2 : log(a) / log(b) = x/y

Ques 38 : Choose the correct answer.

If log8 x + log8 (1/6) = 1/3 then the value of x is:

Ques 39 : Choose the correct answer.

If log x + log y = log (x + y), then:

Option 1 : x = y Option 2 : xy=1 Option 3 : y = (x-1)/x

Ques 40 : Choose the correct answer.

If log10 7 = a, then log10(1/70) is equal to:

The ratio of two numbers is 3:4 and their HCF is 4.Their LCM is:

Option 1 : 12 Option 2 : 16 Option 3 : 24

**Option 4 : 48**Ques 32 : Choose the correct answer.

A rectangular courtyard 3.78 meters long and 5.25 meters wide is to be paved exactly with square tiles ,all of the same size. What is the largest size of the tile which could be used for the purpose?

Option 1 : 14 cm

**Option 2 : 21 cm**Option 3 : 42 cm Option 4 : None of theseQues 33 : Choose the correct answer.

The least perfect square which is divisible by 3, 4, 5, 6, 8 is:

Option 1 : 900 Option 2 : 1200 Option 3 : 2500

**Option 4 : 3600**Ques 34 : Choose the correct answer.

What will be obtained if 8 is subtracted from the HCF of 168, 189, and 231?

Option 1 : 15 Option 2 : 10 Option 3 : 21

**Option 4 : None of these**Ques 35 : Choose the correct answer.

The largest four digit number which is a multiple of 8, 10,12 and 15 is:

Option 1 : 120 Option 2 : 9600 Option 3 : 9840

**Option 4 : 9960**Ques 36 : Choose the correct answer.

If logx (0.1) = -1/3, then the value of x is:

Option 1 : 10 Option 2 : 100

**Option 3 : 1000**Option 4 : 1/1000Ques 37 : Choose the correct answer.

If ax = by, then:

Option 1 : log(a/b) = x/y Option 2 : log(a) / log(b) = x/y

**Option 3 : log(a) / log(b) = y/x**Option 4 : None of theseQues 38 : Choose the correct answer.

If log8 x + log8 (1/6) = 1/3 then the value of x is:

**Option 1 : 12**Option 2 : 16 Option 3 : 18 Option 4 : 24Ques 39 : Choose the correct answer.

If log x + log y = log (x + y), then:

Option 1 : x = y Option 2 : xy=1 Option 3 : y = (x-1)/x

**Option 4 : y = x/(x-1)**Ques 40 : Choose the correct answer.

If log10 7 = a, then log10(1/70) is equal to:

**Option 1 : -(1 + a)**Option 2 : (1 + a)-1 Option 3 : a/10 Option 4 : 1/10a
## No comments:

## Post a Comment