IIT JEE Practice Question and Answer
8Q: Rushi and Arun are two business partners. They invest their capital in the ratio 7 : 9. After 6 months, a third person Ram joins them with a capital of two third of that of Arun. After a year, profit share of Rushi was Rs. 5600, then find total profit? 2606 05b5cc619e4d2b4197774b70f
5b5cc619e4d2b4197774b70f- 126,250false
- 219,200false
- 318,650,false
- 415,200true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "15,200"
Explanation :
Answer: D) 15,200 Explanation: Ratio of investment of all the three members = (7 x 12) : (9 x 12) : (2/3 x 9 x 6) = 7 : 9 : 3 Given Rushi's one year profit = Rs. 5600 => Let the total profit = Rs. P Then, P x 7/19 = 5600 Total profit P = 19 x 5600/7 = Rs. 15,200.
Q: The interest on a certain deposit at 4.5% p.a. is Rs. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a. ? 2605 05b5cc6dde4d2b4197774ea19
5b5cc6dde4d2b4197774ea19- 1Rs. 22.5true
- 2Rs. 2.5false
- 3Rs. 202false
- 4Rs. 25false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Rs. 22.5"
Explanation :
Answer: A) Rs. 22.5 Explanation: We know that I = PTR/100=> P = 20250/4.5 = 4500Now, new Interest at 5% = 4500x1x5/100 = 225Now the additional amount = 225 - 202.5 = Rs. 22.5
Q: Which of these does not contain a structural protein? 2605 05b5cc6aae4d2b4197774cf29
5b5cc6aae4d2b4197774cf29- 1Tendonsfalse
- 2Ovalbumintrue
- 3Musclesfalse
- 4Ligamentsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Ovalbumin"
Explanation :
Answer: B) Ovalbumin Explanation:
Q: The Most Abundant Rare Gas in the Atmosphere is 2603 05b5cc6b8e4d2b4197774d68e
5b5cc6b8e4d2b4197774d68e- 1Xefalse
- 2Hefalse
- 3Nefalse
- 4Artrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Ar"
Explanation :
Answer: D) Ar Explanation: Argon is most the most abundant Rare Gas in the atmosphere. Its elemental symbol is Ar.
Q: A shop keeper sells an article at a loss of 8%, but when he increases the selling price of the article by Rs. 164 he earns a profit of 2.25% on the cost price. If he sells the same article at Rs. 1760, what is his profit percentage? 2602 05b5cc62ae4d2b4197774b89f
5b5cc62ae4d2b4197774b89f- 12.5%false
- 25%false
- 310%true
- 47.5%false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "10%"
Explanation :
Answer: C) 10% Explanation: According to the given data, Let Cost price of the article be 'cp' Then, 102.25 cp - 92 cp = 164 x 100 10.25 cp = 16400 cp = 1600 Now, if he sells at Rs. 1760 Profit = 1760 - 1600 = 160 Profit% = 160/1600 x 100 = 10%.
Q: A heap of coconuts is divided into groups of 2, 3 and 5 and each time one coconut is left over. The least number of Coconuts in the heap is ? 2602 05b5cc6d8e4d2b4197774e778
5b5cc6d8e4d2b4197774e778- 163false
- 231true
- 316false
- 427false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "31"
Explanation :
Answer: B) 31 Explanation: To get the least number of coconuts :LCM = 30 => 30 + 1 = 31
Q: When a computer prints a report this output is called 2600 05b5cc69fe4d2b4197774ca14
5b5cc69fe4d2b4197774ca14- 1Soft copyfalse
- 2Hard copytrue
- 3Printingfalse
- 4Programfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Hard copy"
Explanation :
Answer: B) Hard copy Explanation: Hard copy is the output which is printed by the computer.
Q: Heritable variation is required for which of the following? 2599 05b5cc683e4d2b4197774c288
5b5cc683e4d2b4197774c288- 1Evolutiontrue
- 2Asexual reproductionfalse
- 3Mitosisfalse
- 4Meiosisfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Evolution"
Explanation :
Answer: A) Evolution Explanation: Heritable variation is one of the four most important factors that affect whether natural selection can occur. These factors include 1) Heritable variation 2) Descent with modification 3) Struggle for survival, and necessarily if the others are satisfied 4) Survival of the fittest. Heritable variation allows for possibly beneficial, negative, or even neutral mutations to get filtered during each generation by natural selection--weeding out negative mutations, passing on positive and neutral ones. Without heritable variation, species would quickly fall victim to parasites who take advantage of identical genetic material in a population and evolution would not occur. Variation is the raw material of evolution.