Important Questions of Algebra Mathematics | Zigya

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31.

If the roots, of the equation ax2-px + 54= 0 are in the ratio 2:3, then the value of p is

  • 18

  • 21

  • -21

  • 15


32.

If A = {x :x is a letter in word BELOW}, B = {x: x is a letter in word WOOL} and C=A - B, then the number of subsets of C is

  • 1

  • 2

  • 3

  • 4


33.

44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12 days

  • 15 cows more

  • 11 cows more

  • 11 cows less

  • 15 cows less


34.

If A's salary is 20% more than that of B, then how much percent of B's salary less than that of A?

  • 25%

  • 18%

  • 20%

  • 15%


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35.

If two adjacent sides of a square paper are decreased by 20% and 40% respectively, by what percentage does the new area decrease?

  • 50

  • 52

  • 60

  • 48


36.

Find the value of 54752782if 547.5270.0082=x,

  • 10x

  • 100x

  • x100

  • x10


37.

The fractional equivalent of 57.12% (approx.) is

  • 359625

  • 357625

  • 347625

  • 349625


38.

Which is greatest among 3313%,415% and 0.35?

  • 415

  • 0.35

  • Can't be compared

  • 3313%


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39.

If a * b = a2 + b2and  ab= a2 - b2, then the value of (5 * 2)25 is 

  • 225

  • 226

  • 216

  • 215


40.

Unit's digit in 132003 is

  • 3

  • 7

  • 9

  • 1


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