A survey of 235 families to find what type of heating was used – gas, electricity or oil, revealed the following: Twenty house use oil, of which eight use gas also and ten use electricity as well as oil and two use both gas and electricity besides oil. All of 175 houses use either gas or electricity and 132 use electricity. 1) Number of houses using gas is
a) 93 b) 141 c) 140 d) 175
2) Number of houses using only electricity is
a) 82 b) 132 c) 10 d) 77
3) Number of houses using only one type of heating is
a) 76% b) 67% c) 47% d) 57%
4) Number using gas or oil is
a) 152 b) 153 c) 175 d) 176 145 is d ans.
5) Number who consumes oil and gas but not electricity and number who consumes oil and electricity but not gas form a ratio
suppose two person are playing game in which they have to choose a number from 1 to 5 alternatively which keeps on adding...now whoever first reaches the sum 50 wins the game?? if i want always the person who chooses second win what logic should be behind that?
suppose two person are playing game in which they have to choose a number from 1 to 5 alternatively which keeps on adding...now whoever first reaches the sum 50 wins the game?? if i want always the person who chooses second win what logic should be behind that?
Cristianokaka had to do a mutiplication. Instead of taking 35 as one of the multipliers, he took 53. As a result, the product went up by 540. What is the new product? 1) 1050 2) 540 3) 1440 4) 1590
The points (23, 32), (8, 41), (17, 45) are the mid-points of sides of a triangle. Find the largest possible value of x + y where (x, y) is a vertex of the triangle.
q1. a4 letter word is written down by taking letters from the word KANYAKUMARI....what is the chance of the word to be of all different letters??
q2...a card is drawn from the pack of 52 cards ...the card is then replaced and the pack is reshuffled ...it is done six times ...find the chance that the cards are drawn are 2 hearts, 2 diamonds, and 2 black cards???
q3 a word of 5 letters is written down at random with the letters of the word COLLEGE......what is the probability that all the repeated letters were used??
q4 a bag contains 36 tickets numbered from 0 to 35...3 of the tickets r drawn at random. find the probability of the sum of the numbers in the three tickets drawn to be 36
Three friends Alice, Bond and Charlie divide $1105 amongst them in such a way that if $10, $20 and $15 are removed from the sums that Alice, Bond and Charlie received respectively, then the share of the sums that they got will be in the ratio of 11 : 18 : 24. How much did Charlie receive?
Five points A,B,C,D,E lie on a line L1 and points P,Q,R,S,T lie on a line L2. Each of the five points on L1 is connected to each of the points on L2, by means of straight lines terminated by the points. Then Excluding the given points, the maximum number of points at which the lines can intersect is ?
had to do a mutiplication. Instead of taking 35 as one of the multipliers, he took 53. As a result, the product went up by 540. What is the new product?
