Aptitude - Number
16.
578 x 578 x 578 + 432 x 432 x 432578 x 578 - 578 x 432 + 432 x 432 =
Answer
a3 + b3a2 − ab + b2 = a + b , where a = 578 and b = 432
= (a + b) = (578 + 432) = 1000
Answer :
Option AExplanation :
a3 + b3a2 − ab + b2 = a + b , where a = 578 and b = 432
= (a + b) = (578 + 432) = 1000
17.
What is the face value of 7 in 536749 ?
Answer
Face value of a digit in a numeral is the value of digit itself.
Answer :
Option AExplanation :
Face value of a digit in a numeral is the value of digit itself.
18.
Which of the place value of 7 in 536749 ?
Answer
Place value is the location of numeral.
Answer :
Option BExplanation :
Place value is the location of numeral.
19.
Which of the local value of 7 in 536749 ?
Answer
Local value is the same as place value.
Answer :
Option BExplanation :
Local value is the same as place value.
20.
491109 − 62835 = 5014 + ______
Answer
= 491109 − 62835 − 5014 = 423260
Answer :
Option CExplanation :
= 491109 − 62835 − 5014 = 423260
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