Maths PYQ — Page 11

A and B are two heavy steel blocks. If B is placed on the top of A, the weight increases by 60%. How much weight will reduce with respect to the total weight of A and B, if B is removed from the top of A?

Number 136 is added to 5 B 7 and the sum obtained is 7A3, where A and B are integers. It is given that 7A3 is exactly divisible by3. The only possible value of B is

When a runner was crossing the 12 km mark, she was informed that she had completed only 80% of the race. How many kilometres was the runner supposed to run in this event?

In a conference, out of a total 100 participants, 70 are Indians. If 60 of the total participants are vegetarian, then which of the following statements is/are correct? 1. At least 30 Indian participants are vegetarian. 2. At least 10 Indian participants are non-vegetarian. Select the correct answer using the codes given below:

If the numerator and denominator of a proper fraction are increased by the same positive quantity which is greater than zero, the resulting fraction is

The number of parallelograms that can be formed from a set of four parallel lines intersecting another set of four parallel lines, is

If x is greater than or equal to 25 and y is less than or equal to 40, then which one of the following is always correct?

The average marks of 100 students are given to be 40. It was found later that marks of one student were 53 which were misread as 83. The corrected mean marks are

The number of times the digit 5 will appear while writing the integers from 1 to 1000 is

In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?

The ratio of a two-digit natural number to a number formed by reversing its digits is 4: 7. The number of such pairs is

X and Y are natural numbers other than 1, and Y is greater than X Which of the following represents the largest number?

How many diagonals can be drawn by joining the vertices of an octagon?

With reference to the above graph, consider the following statements considering 1970 as base year: 1. Population has stabilized after 35 years. 2. Population growth rate has stabilized after 35 years. 3. Death rate has fallen by 10% in the first 10 years. 4. Birth rate has stabilized after 35 years. Which of the above are the most logical and rational statements that can be made from the above graph?

While writing all the numbers from 700 to 1000, how many numbers occur in which the digit at hundred’s place is greater than the digit at ten’s place, and the digit at ten’s place is greater than the digit at unit’s place?

Consider the following graph: [Image: image] Which one of the following statements is not correct with reference to the graph given above?

If X is between –3 and –1, and Y is between – 1 and 1, then X2 – Y2 is in between which of the following?

A number consists of three digits of which the middle one is zero and their sum is 4. If the number formed by interchanging the first number itself by 198, then the difference between the first and last digits is

The following graph shows imports of three different types of steel over a period of six months of a year. Study the graph and answer the questions. [Image: image] The figures in the brackets indicate the average cost per ton over six months period. What was the approximate total value (in $) of sheet steel imported over the six months period?

The graph given below indicates the changes in Key policy rates made by the Central Bank several times in a year [Image: Question Image] Which one of the following can be the most likely reason for the Central Bank for such an action?

A shopkeeper sells an article at Rs 40 and gets X% profit. However, when he sells it at Rs 20, he faces same percentage of loss. What is the original cost of the article?

The following table gives the GDP growth rate and Tele-density data of different States of a country in a particular year. Study the table and answer the question: States | Per capita income ($) | GDP growth rate (%) | Tele-density State 1 | 704 | 9.52 | 70.27 State 2 | 419 | 5.31 | 35.88 State 3 | 254 | 10.83 | 50.07 State 4 | 545 | 9.78 | 5.94 State 5 | 891 | 10.8 | 76.12 State 6 | 1077 | 11.69 | 77.5 State 7 | 900 | 8.88 | 104.86 State 8 | 395 | 5.92 | 6 State 9 | 720 | 7.76 | 82.25 State 10 | 893 | 9.55 | 96.7 State 11 | 363 | 4.7 | 57.7 State 12 | 966 | 7.85 | 63.8 State 13 | 495 | 9.37 | 52.3 State 14 | 864 | 5.46 | 97.9 State 15 | 497 | 7.48 | 62.3 State 16 | 777 | 7.03 | 93.8 State 17 | 335 | 5.8 | 49.9 State 18 | 599 | 7.49 | 47.84 With reference to the above table, the following assumptions have been made: 1. Now a days, prosperity of an already high performing State cannot be sustained without making further large investments in its telecom infrastructure. 2. Nowadays, a very high Tele-density is the most essential condition for promoting the business and economic growth in a State. Which of the above assumptions is/are valid?

A lift has the capacity of 18 adults or 30 children. How many children can board the lift with 12 adults?

A person bought a refrigerator worth ₹22,800 with 12.5% interest compounded yearly. At the end of first year he paid ₹8,650 and at the end of second year ₹9,125. How much will he have to pay at the end of third year to clear the debt?