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- Question
- A class of girls stands in a single line. One girl is 19th in order from both the ends. How many girls are there in the class?
Options- A. 27
- B. 37
- C. 38
- D. 39
- Correct Answer
- 37
ExplanationClearly, the girl at the 19th position is exactly in the middle of both the ends.
? Total number of girls = (18 + 1 + 18) = 37 - 1. Every integer is a rational number.
Options- A. TRUE
- B. FALSE Discuss
- 2. There are five bags. In the first bag we put some fruits. Each bag the number of fruits is reduced by 1/4. The last bag contains 4. Then the number of fruits in the first bag is ?
Options- A. 2596
- B. 1024
- C. 256
- D. 64 Discuss
- 3. 3x3x3+3+3/3 = ?
Options- A. 11
- B. 3.33
- C. 31
- D. None of the above Discuss
- 4. If the digits in the number 79246358 are arranged in descending order from left to right, what will be the difference between the digits which are third from the right and second from the left in the new arrangement?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 5. How many rectangles can be drawn with 36 cm as the perimeter, given that the sides are positive integers in cm?
Options- A. 8
- B. 9
- C. 10
- D. 11 Discuss
- 6. The following equation is incorrect. Which two signs should be interchanged to correct the equation? 15 x 18 - 6 ÷ 20 + 4 = 29
Options- A. + and x
- B. ÷ and -
- C. + and ÷
- D. - and + Discuss
- 7. Select the odd word/letters/number/number pair from the given alternatives.
Options- A. 1356
- B. 5497
- C. 8764
- D. 9943 Discuss
- 8. The expression of 5008 km in scientific notation is
Options- A. 50.08 x 10^3 kms
- B. 5.008 x 10^-3 kms
- C. 5.008 x 10^3 kms
- D. 500.8 x 10^3 kms Discuss
- 9. Find out the odd word/letters/number/number pair from the given alternatives.
Options- A. 4312
- B. 4216
- C. 9218
- D. 3618 Discuss
- 10. From the given words, select the word which can be formed using the letters of the given word. AMPLIFICATION
Options- A. ACTOR
- B. MANOR
- C. CHAMP
- D. MANIA Discuss
More questions
Correct Answer: TRUE
Explanation:
Yes, Every integer is a rational number. A rational number is a number which can be expressed as a ratio of two integers numerator and denominator where (the denominator not being 0 ).
Hence, Every integer can be expressed in ratio of two integers.
Correct Answer: 1024
Explanation:
Fruits reduced by 1/4.
Total no. of bags N = 5
Formula to find no. of fruits in 1st bag = 4^n
Last Bag = 4 fruits.
That means, 4th bag = 4 x 4 = 16 fruits
3rd bag = 16 x 4 = 64 fruits
2nd bag = 64 x 4 = 256 fruits
1st bag = 256 x 4= 1024 fruits.
Correct Answer: 31
Explanation:
We all know about BODMAS rule, by using that
3x3x3+3+3/3
= 3x3x3+3+1
= 27+3+1
= 27 + 4
= 31
Hence, 3x3x3+3+3/3 = 31.
Correct Answer: 4
Explanation:
Number - '79246358' If the digits are arranged in descending order from left to right, new number = 98765432 Difference between the digits which are third from the right and second from the left = 8 - 4 = 4.
Correct Answer: 9
Explanation:
Perimeter = 36
? 2 ( l + w ) = 36
? l + w = 18
Since length and width are positive integers in centimeters.
Therefore, possible dimensions are :
( 1, 17 )cm , ( 2, 16 ) cm , ( 3, 15 ) cm, (4 , 14) cm, ( 5,13) cm, ( 6, 12) cm , ( 7, 11) cm, ( 8, 10 ) cm, ( 9, 9) cm.
Hence, there are 9 rectangles.
Correct Answer: ÷ and -
Correct Answer: 1356
Correct Answer: 5.008 x 10^3 kms
Explanation:
We know that, any decimal number when multiplied by the multiples of 10, the decimal point moves to right the number of zeroes in the multiplying number.
For example ::
0.0410 x 100 = 4.10 (Number of zeros in 100 are 2. So, the decimal point in 0.0410 moves two places to the right and becomes 4.10.)
Similarly, here in the option C) 5.008 x 10^3 kms it makes 5008 kms as the number of zeros in 10^3 i.e, 1000 are 3 and 5.008 becomes 5008.
Correct Answer: 4216
Correct Answer: MANIA
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