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Find the missing number.

लुप्त संख्या ज्ञात करें। The average age of three girls is 7 years. If ratio of their age is 1 : 3 : 3 then how old will be the youngest girl.

तीन लड़कियों की आयु का औसत 7 वर्ष है यदि उनकी आयु का अनुपात 1 : 3 : 3 है तो सबसे छोटी लड़की की आयु कितने वर्ष होगी?

Find the number of rectangle in the given figure.

दी आकृति में आयतों की संख्या ज्ञात करें। If 1 = 1, 2 = 4, 3 = 9 then 6 = ?

यदि 1 = 1, 2 = 4, 3 = 9 हो तो 6 = ?

How many triangle are there in the following figure?

दी गर्इ आकृति में कितने त्रिभुज हैं? Vimal is 16 years younger than Saurabh. Twelve years from now, Saurabh's age will be 1.5 times of Vimal's age. How old is Saurabh now ?

विमल, सौरभ की तुलना में 16 वर्ष छोटा है। अब से 12 वर्ष बाद सौरभ, विमल की आयु से 1.5 गुना होगी। सौरभ की वर्त्तमान आयु क्या है?

Select the term from among the given options that can replace the question mark (?) in the following series.

निम्नलिखित में से कौन-सा पद दी गई श्रृंखला में प्रश्न चिन्ह के स्थान पर आएगी?

DF, HJ, LN, PR, ?

Select the term from among the given options that can replace the question mark (?) in the following series.

निम्नलिखित में से कौन-सा पद दी गई श्रृंखला में प्रश्न चिन्ह के स्थान पर आएगी?

BDF, CEG, DFH, ?

If 2 = 4, 3 = 5, 4 = 6 then 10 = ?

यदि 2 = 4, 3 = 5, 4 = 6 हो तो 10 = ?

Find the missing number.

लुप्त संख्या ज्ञात करें। Q. 1

Find the missing number.

लुप्त संख्या ज्ञात करें। 26

36

32

40

Explanation

I.         5 + 4 = 9

5 × 4 = 20

II.        3 + 8 = 11

3 × 8 = 24

III.       9 + 4 = 13

9 × 4 = 36

Q. 2

The average age of three girls is 7 years. If ratio of their age is 1 : 3 : 3 then how old will be the youngest girl.

तीन लड़कियों की आयु का औसत 7 वर्ष है यदि उनकी आयु का अनुपात 1 : 3 : 3 है तो सबसे छोटी लड़की की आयु कितने वर्ष होगी?

3 years/3 वर्ष

4 years/ 4 वर्ष

5 years/5 वर्ष

6 years/6 वर्ष

Explanation Q. 3

Find the number of rectangle in the given figure.

दी आकृति में आयतों की संख्या ज्ञात करें। 100

120

140

150

Explanation Q. 4

If 1 = 1, 2 = 4, 3 = 9 then 6 = ?

यदि 1 = 1, 2 = 4, 3 = 9 हो तो 6 = ?

25

36

49

64

Explanation Q. 5

How many triangle are there in the following figure?

दी गर्इ आकृति में कितने त्रिभुज हैं? 16

13

9

7

Explanation Q. 6

Vimal is 16 years younger than Saurabh. Twelve years from now, Saurabh's age will be 1.5 times of Vimal's age. How old is Saurabh now ?

विमल, सौरभ की तुलना में 16 वर्ष छोटा है। अब से 12 वर्ष बाद सौरभ, विमल की आयु से 1.5 गुना होगी। सौरभ की वर्त्तमान आयु क्या है?

36 years/36 वर्ष

40 years/40 वर्ष

42 years/42 वर्ष

45 years/45 वर्ष

Explanation

Let, Saurabh age = x

Vimal age = (x – 16)

According to the question

(x + 12) = 1.5 (x – 16 + 12)

0.5 x = 18

x = 36 years

माना सौरभ की आयु = x

विमल की आयु = (x – 16)

प्रश्नानुसार

(x + 12) = 1.5 (x – 16 + 12)

0.5 x = 18

x = 36 वर्ष

Q. 7

Select the term from among the given options that can replace the question mark (?) in the following series.

निम्नलिखित में से कौन-सा पद दी गई श्रृंखला में प्रश्न चिन्ह के स्थान पर आएगी?

DF, HJ, LN, PR, ?

TU

TV

RU

SU

Explanation Q. 8

Select the term from among the given options that can replace the question mark (?) in the following series.

निम्नलिखित में से कौन-सा पद दी गई श्रृंखला में प्रश्न चिन्ह के स्थान पर आएगी?

BDF, CEG, DFH, ?

EFI

EGI

EGJ

EGH

Explanation Q. 9

If 2 = 4, 3 = 5, 4 = 6 then 10 = ?

यदि 2 = 4, 3 = 5, 4 = 6 हो तो 10 = ?

8

10

12

14

Explanation Q. 10

Find the missing number.

लुप्त संख्या ज्ञात करें। 70

60

82

65

Explanation

(36∼44) × 3 – 2 = 8 × 3 – 2 = 22

(22∼11) × 3 – 2 = 11 × 3 – 2 = 31

(44∼72) × 3 – 2 = 28 × 3 – 2 = 84 – 2 = 82

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