IAS 2011 — Maths

Consider the four age pyramids given below namely A, B, C and D representing four different countries. [Image: image] Which one of them indicates the declining population?

The following pie charts show the breakup of disease categories recorded in the patients from two towns, Town A and Town B. Pie charts plot the disease categories as percentage of the total number of patients. Based on these, answer the question that follow. [Image: image] Which of the two towns has a higher number of persons with Diabetes?

The following pie charts show the breakup of disease categories recorded in the patients from two towns, Town A and Town B. Pie charts plot the disease categories as percentage of the total number of patients. Based on these, answer the question that follows. [Image: image] What can we say about persons with more than one disease from these graphs?

In a survey regarding a proposal measure to be introduced, 2878 persons took part of which 1652 were males. 12 persons voted against the proposal which 796 were males. 1425 persons vote for the proposal. 196 females were undecided. How many males were undecided?

Read the passage given below, study the graph that follows and answer the question. During a party, a person was exposed to contaminated water. A few days later, he developed fever and loose motions. He suffered for some days before going to a doctor for treatment. On starting the treatment, he soon became better and recovered completely a few days later. The following graph shows different phases of the person's disease condition as regions A, B, C, D and E of the curve. [Image: A graph of time and time AI-generated content may be incorrect.] Which region of the curve indicates that the treatment yielded effective relief?

Read the passage given below, study the graph that follows and answer the question. During a party, a person was exposed to contaminated water. A few days later, he developed fever and loose motions. He suffered for some days before going to a doctor for treatment. On starting the treatment, he soon became better and recovered completely a few days later. The following graph shows different phases of the person's disease condition as regions A, B, C, D and E of the curve. [Image: A graph of time and time AI-generated content may be incorrect.] Which region of the curve indicates that the person began showing the symptoms of infection?

Read the passage given below, study the graph that follows and answer the question. During a party, a person was exposed to contaminated water. A few days later, he developed fever and loose motions. He suffered for some days before going to a doctor for treatment. On starting the treatment, he soon became better and recovered completely a few days later. The following graph shows different phases of the person's disease condition as regions A, B, C, D and E of the curve. [Image: Question Image] Which region/regions of the curve correspond/corresponds to incubation phase of the infection?

A village having a population of 4000 requires 150 litres of water per head per day. It has a tank measuring 20m × 15m × 6m. The water of this tank will last for

If a bus travels 160km in 4 hours and a train trave1s 320 km in 5 hours at uniform speeds, then what is the ratio of the distances travelled by them in one hour?

In a group of persons, 70% of the persons are male and 30% of the persons are married. If two-sevenths of the males are married, what fraction of the females is single?

A contract on construction job specifies a penalty for delay in completion of the work beyond a certain date is as follows: Rs 200 for the first day, Rs 250 for the second day, Rs 300 for the third day etc., the penalty for each succeeding day being Rs 50 more than that of the preceding day. How much penalty should the contractor pay if he delays the work by 10 days?

In a survey regarding a proposal measure to be introduced, 2878 persons took part of which 1652 were males. 12 persons voted against the proposal which 796 were males. 1425 persons vote for the proposal. 196 females were undecided. How many females voted for the proposal?

Consider the following distance- time graph. The graph shows three athletes A, B and C running side by side for a 30 km race. [Image: Question Image] With reference to the above graph, consider the following statements: 1. The race was won by A. 2. B was ahead mark of A up to 25 km mark 3. C ran very slowly from the beginning. Which of the statements given above is/are correct?

In a survey regarding a proposal measure to be introduced, 2878 persons took part of which 1652 were males. 12 persons voted against the proposal which 796 were males. 1425 persons vote for the proposal. 196 females were undecided. How many females were not in favour the proposal?

A student on her first 3 tests received an average score of N points. If she exceeds her previous average score by 20 points on her fourth test, then what is the average score for the first 4 tests?

There are four routes to travel from city A to city B and six routes from city B to city C. How many routes are possible to travel from the city A to city C?

Consider the following Velocity — Time graph. It shows two trains starting simultaneously on parallel tracks. [Image: Question Image] With reference to the above graph, which one of the following statements is not correct?

Three persons start walking together and their steps measure 40 cm, 42 cm and 45 cm respectively. What is the minimum distance each should walk so that each can cover the same distance in complete steps?

The following figure has four curves namely A, B, C and D. [Image: A graph of a number of numbers and a line AI-generated content may be incorrect.] Study the figure and answer the item that follows. Which curve indicates the exponential growth?

A person has only ₹1 and ₹2 coins with her. If the total number of coins that she has is 50 and the amount of money with her is ₹75, then the number of ₹1 and ₹2 coins are, respectively