Number System 75% of 250 - ?% of 380 = 54.5 33 39 35 31 33 39 35 31 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 250 x 75/100 - 380 x ?/100 = 54.5= 250 x 75 - 380 x ?= 54.5 x 100= 18750 - 380 x ?= 5450= 380 x? = 18750 - 5450= 13300= ? = 13300/380 = 35
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 660 556 720 515 660 556 720 515 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System The difference between 35% of a number and 18% of the same number is 93.5 then what is the 40% of that number ? 220 245 232 225 220 245 232 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Diff = (35 - 18)% of x = 93.517x/100 = 93.5Therefore, x = 550Therefore, 40% of 550 = 220
Number System A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13? 5 0 7 11 5 0 7 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39 + 20 = 59/13 = 7 (Remainder)
Number System If (182)² is added to the square of a number, the answer so obtained is 47765. What is the number ? 121 131 101 111 121 131 101 111 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be xTherefore x² + (182)² = 47765Therefore x² = 47765 - (182)2 = 47765 - 33124Therefore x² = 14641, Therefore x = 121
Number System √343 = ? 19 20 18 21 19 20 18 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √343 = 18