The equation formed by decreasing each root of ax^2+bx+c=0 by 1 is 2x^2+bx+2=0, then:(a) a=-b(b) b=-c(c) c=-a(d) b=a+c

A box of 150 packets consists of 1kg packets and 2kg packets. Total weight of box is 264kg. How many 2kg packets are there?(i)36(ii)114(iii)120(iv)50

A solid wood cube, 1 ft on an edge, was sawed into eight smaller congruent cubes. the smaller cubes were then reassembled to form the longest possible rectangular prism. what is the percent change in surface area

The equation formed by decreasing each root of ax^2+bx+c=0 by 1 is 2x^2+bx+2=0, then:(a) a=-b(b) b=-c(c) c=-a(d) b=a+c

The number of ways in which 13 gold coins can be distributed among three persons such that each one gets at least two gold coins is:(a) 6(b) 12(c) 24(d) 36

A dealer bought identical 100 batteries at a total cost of q dollars;if each battery was sold @ 50% above the original cost per battery,then in terms of q how many dollars was each battery sold.A) 3q/200B)3q/2C)150qD)q/100+50E)150/q

There are as many mangoes in a crate as there are crates in a fruit shop.Pablo takes away one crate and then the shop has only 90 mangoes left.How many mangoes does each crate haveA.20B.10C.25D.5E.15

The coefficient of x in a quadraic equation  x² + px + q = 0 was taken as 17 in a place of 13 and its roots were found to be -2 and -15.The roots of the original equation are.....?A. 2, 15B. 10, 3C. -10, -3D. -2, -15E. 2, 10

Carla has Rs. 2,750 in her purse in denominations of hundred and fifty. She has 32 notes in all counting both hundred and fifty.How many hundred rupee notes does she have in her purse ?A. 23B. 9C. 24D. 8E. 25

In a Cricket match Anil took one wicket less than twice the number of wickets taken by Ravi. If the product of the number of wickets then by them is 15, the number of wickets taken by each of them areA. 5,3B. 3,5C. 2,6D. 7,9E. 6,2

If Xand Y are real numbers then the minimum value of X^2+4XY+6Y^2-4Y+4 isA. -4B. 0C. 2D. 4

If the number n of calculators sold per week varies with the price p in dollars according to the equation n=300-20p, what would be the total weekly revenue from the sale of $10 calculators?A. $100B. $300C. $1,000D. $2,800E. $3,000

A beam light shines from point S,reflects off  a reflector at point P,and reaches point T so that PT is perpendicular to Rs.Find the  value of x.A.32 degreesB.54 degreesC.18 degreesD.48 degreesE.64 degrees

A certain fruit stand sold apples for $0.70 each and bananas for $0.50 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and bananas did the customer purchase ?A. 10B. 11C. 12D. 13E. 15

A rope 40 feet long is cut into two pieces. If one piece is 18 feet longer than the other, what is the  length in feet, of the shorter piece ?A. 9B. 11C. 18D. 22E. 29

If y is an integer, then the least possible value of |23−5y| isA. 1B. 2C. 3D. 4E. 5

A circular scale clock is showing 7.45 am what is the change in the angle happened between the hour hand and minute hand when the clock reads 7.47amA)10B)11C)12D)13

In a bought 2 candies, 3 cans of soft drink and 9 pieces of cake for Rs. 109. Sona bought 4 candies, 5 pieces of cake and a can of soft drink for Rs. 67.How much did Koena pay for 3 candiesm 2 cans of drink and 7 pieces of cake, if all the three bought candies, cakes and soft drinks of the same kind ?A. 67B. 78C. 88D. 86E. 66

The number of quadratic expressions with the coefficient drawn from the set{0,1,2,3} is:(a)21(b)36(c)48(d)64

In a particular jungle which only had deer and human visitors, there were 70 heads and 188 legs. How many deer and visitors were there ?A. 24 and 46B. 42 and 16C. 22 and 32D. 18 and 34E. 16 and 32