# Square and Cube Root- Aptitude Questions and Answers - in Hindi

 (0.324 * 0.081 * 4.624) / (1.5625 * 0.0289 * 72.9 * 64) is the square root of ? (0.324*0.081*4.624)/(1.5625*0.0289*72.9*64) का वर्गमूल है? A) 24 B) 2.4 C) 0.024 D) 1.2 Correct Answer :0.024 Explanation :(0.324 * 0.081 * 4.624) / (1.5625 * 0.0289 * 72.9 * 64) =(324 * 81 * 4624) / (1.625 * 289 * 729 * 64) =9/15625 hence,the square root is √(9/15625) =3/125 =0.024 √64 - √36, is equal to ? √64 - √36 , किसके बराबर है? A) -2 B) 2 C) 1 D) 0 Correct Answer :2 Explanation :√64 - √36 = 8- 6 = 2 6440 students were asked to stand in rows to form a perfect square. It was found that 40 students were left out. What will be the number of students in each row? 6440 छात्रों को एक पूर्ण वर्ग बनाने के लिए पंक्तियों में खड़े होने के लिए कहा गया । यह पाया गया कि पूर्ण वर्ग बनने के बाद 40 छात्रों ओर बचे। तो प्रत्येक पंक्ति में छात्रों की संख्या क्या होगी? A) 40 B) 80 C) 64 D) 60 Correct Answer :80 Explanation :Remaining students = 6440- 40 = 6400 So, students in each row = √6400 = 80 What is √ { ( 0.064 * 6.25 ) / ( 0.081 * 4.84 ) } equal to? √ { ( 0.064 * 6.25 ) / ( 0.081 * 4.84 ) } किसके बराबर है? A) 10/99 B) 100/99 C) 9 D) 99 Correct Answer :100/99 Explanation :√{ ( 0.064 * 6.25 )/( 0.081 * 4.84 ) } = √ {(64 * 625 )/( 81 * 484 ) } = (8 * 25)/( 9* 22) = 200/198 = 100/99