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- Question
- The sum of HCF and LCM of two numbers is 403 and their LCM is 12 times their HCF. If one number is 93, then find the another number.
Options- A. 115
- B. 122
- C. 124
- D. 138
- Correct Answer
- 124
ExplanationLet LCM = m, HCF = n,
According to the question,
m = 12n, .......(i)
and m + n = 403.......(ii)
? 12n + n = 403 [from Eq.(i)]
? 13n = 403
? n = 403/13 = 31
? m = 12 x 31 = 372
Let the another number = k
? 93 x k = 372 x 31
[as product of two numbers HCF x LCM]
? k = (372 x 31)/93 = 124 - 1. Simran started a software business by investing Rs. 50,000. After six months, Nanda joined her with a capital of Rs. 80,000. After 3 years, they earned a profit of Rs. 24,500. What was Simran's share in the profit?
Options- A. Rs. 9,423
- B. Rs. 10,250
- C. Rs. 12,500
- D. Rs. 10,500 Discuss
- 2. (100)0 is equivalent to :
Options- A. 0
- B. 10
- C. 1
- D. 100 Discuss
- 3. Find the triplicate ratio of 7 : 5?
Options- A. 125 : 343
- B. 343 : 125
- C. 344 : 125
- D. 343 : 126 Discuss
- 4. The sum to 12 terms of an AP is equal to the sum to 18 terms. What will be the sum to 30 terms for this series?
Options- A. 3
- B. 2
- C. 1
- D. 0 Discuss
- 5. In what proportion must wheat at Rs. 1·60 per kg be mixed with wheat at Rs. 1·45 per kg. So that the mixture be worth Rs. 1·54 per kg?
Options- A. 2 : 3
- B. 3 : 2
- C. 3 : 4
- D. 4 : 3 Discuss
- 6. A merchant has 50 kg. of sugar part of which he sells at 8 % profit and the rest at 18 % profit. He gains 14 % on the whole. The quantity sold at 18 % profit is ?
Options- A. 20 kg
- B. 30 kg
- C. 15 kg
- D. 35 kg Discuss
- 7. 4 vessels of equal sizes contains mixture of spirit and water. The concentration of spirit in 4 vessels are 60 %, 70 %, 75 % and 80 % respectively. If all the 4 mixtures are mixed, find in the resultant mixture the ratio of spirit to water ?
Options- A. 57 : 13
- B. 23 : 57
- C. 57 : 23
- D. None of these Discuss
- 8. Rs. 675 was divided among 75 boys and girls. Each boy gets Rs. 20 whereas a girl gets Rs. 5. Find the number of boys and girls.
Options- A. 20 , 55
- B. 15 , 60
- C. 25 , 50
- D. 30 , 45 Discuss
- 9. In a mixture of 60 liters, the ratio of milk and water is 2 : 1. If the ratio of the milk and water is to be 1 : 2, then the amount of water to be further added is ?
Options- A. 20 litres
- B. 30 litres
- C. 40 litres
- D. 60 litres Discuss
- 10. In a mixture of 60 liters, the ratio of milk and water is 2 : 1. If the ratio of the milk and water is to be 1 : 2, then the amount of water to be further added is ?
Options- A. 20 litres
- B. 30 litres
- C. 40 litres
- D. 60 litres Discuss
More questions
Correct Answer: Rs. 10,500
Explanation:
Correct Answer: 1
Explanation:
If any given number (suppose x) is a rational number other than zero, then x0 = 1.
Correct Answer: 343 : 125
Explanation:
Required triplicate ratio of 7 : 5 = 73 : 53
= 343 : 125
Correct Answer: 0
Explanation:
As, S12 = S18
So, S11 = S19
S10 = S20
S9 = S19
.........
.........
.........
S0 = S30
As, S0 = 0
So, S30 = 0
Correct Answer: 3 : 2
Explanation:
Using the Alligation method ,
Here , C1 = 160 paise , C2 = 145 paise and Mean cost Price ( M ) = 154 paise
Required ratio = ( M - C2 ) : ( C1 - M )
? (Dearer wheat) : (Cheaper wheat) = 9 : 6
Hence , (Dearer wheat) : (Cheaper wheat) = 3 : 2
Correct Answer: 30 kg
Explanation:
Correct Answer: 57 : 23
Explanation:
Correct Answer: 20 , 55
Explanation:
Average money per head (boy or girl) = Rs. (675 / 75) = Rs. 9
Number of boys = 4 / (4 + 11) × 75 = 20
Number of girls = 11 / (4 + 11) × 75 = 55.
Correct Answer: 60 litres
Explanation:
Here , Ratio of milk and water in mixture of 60 litre = 2 : 1
? Quantity of milk = 2y = 40 litre
Quantity of water = y = 20 litre
If ratio of milk and water is to be 1 : 2, then in 40 litres of milk, water should be 80 litre
? Quantity of water to be added = 60 litre.
Correct Answer: 60 litres
Explanation:
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