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- Question
The average weight of Somdev, Gurdeep and Ritu is 85 kg. If the average weight of Somdev and Gurdeep be 79 kg and that of Gurdeep and Ritu be 73 kg, then the weight of Gurdeep is
Options- A. 78
- B. 49
- C. 72
- D. 90
- Correct Answer
- 49
- 1. 198.995 x 12.005 + 16.25 x 6.95 =?
Options- A. 2580
- B. 2550
- C. 2400
- D. 2500 Discuss
- 2. The face value of 8 in the numeral 458926 is?
Options- A. 8000
- B. 8
- C. 1000
- D. 458000 Discuss
- 3. 6, 9, 15, 21, 24, 28, 30?
Options- A. 25
- B. 21
- C. 24
- D. 30 Discuss
- 4. 6674 x 625 =?
Options- A. 4170160
- B. 4072360
- C. 4171050
- D. 4171250 Discuss
- 5. If ax + by = 6, bx ? ay = 2 and x 2 + y 2 = 4, then the value of ( a 2 + b 2) would be :
Options- A. 10
- B. 2
- C. 4
- D. 5 Discuss
- 6. What if the probability of getting a king or a queen in a single drawn from a pack of 52 cards?
Options- A. 1/26
- B. 1/13
- C. 2/13
- D. None of these Discuss
- 7. Find the 4th proportional to 4 , 16 and 7 ,
Options- A. 28
- B. 29
- C. 22
- D. 25 Discuss
- 8. Raj sold an item for ? 6384 and incurred a loss of 30%. At what price should he have sold the item to have gained a profit of 30%
Options- A. ? 14656
- B. ? 11856
- C. ? 13544
- D. cannot be determind Discuss
- 9. (2/3) x (6/8) x (2/3) x (3/4) =?
Options- A. 0.25
- B. 0.5
- C. 1.45
- D. 11.8 Discuss
- 10. The HCF and LCM of two natural numbers are 12 and 72, respectively. What is the difference between the two numbers, if one of the number is 24?
Options- A. 12
- B. 18
- C. 21
- D. 24 Discuss
More questions
Correct Answer: 2500
Explanation:
? = 198.995 x 12.005 + 16.24 x 6.95
= 199 x 12 +16 x 7 = 2388 + 112 = 2500
Correct Answer: 8
Explanation:
The face value of 8 in 458926 is 8
Correct Answer: 25
Explanation:
Each of the number except 28, is a multiple of 3.
Correct Answer: 4171250
Explanation:
6674 x 625 = 6674 x (5)4
= 6674 x (104/24
= 66740000/16 = 4171250
Correct Answer: 10
Explanation:
As we know that given in question,
ax + by = 6 ........................ (i)
bx ? ay = 2 ........................ (ii)
On squaring the both equation and adding,
a2 x2 + b2 y2 + 2abxy + b2 x2 + a2 y2 ? 2abxy = 36 + 4
? x2 (a2 + b2) + y2 (a2 + b2) = 40
? (a2 + b2) (x2 + y2) = 40
As per given question, x2 + y2 = 40 , Put this value in above equation, we will get
? (a2 + b2) × 4 = 40
? a2 + b2 = 10
Correct Answer: 2/13
Explanation:
Clearly, n (S) = 52, there are 4 kings and 4 queens
? P(E) = n (E) / n (S) = 8/52 = 2/13
Correct Answer: 28
Explanation:
Lat the 4th proportional = N
Then, 4 : 16 : : 7 : N
? 4/16 = 7/N
? 4N = 7 x 16
? N = (7 x 16)/4 = 7 x 4 = 28
Correct Answer: ? 11856
Explanation:
CP = 100/70 = x 6384 = ? 9120
To gain 30%, SP = 130% of 9120
SP = (130/100) x 9120 = ? 11856
Correct Answer: 0.25
Explanation:
(2/3) x (6/8) x (2/3) x (3/4) = 1/4 = 0.25
Correct Answer: 12
Explanation:
Second number = (LCM x HCF) / first number
= (72 x 12)/ 24 = 36
Difference between the two numbers
= 36 - 24 = 12
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