एकसिक्केको100बारउछालाजाता हैऔरशीर्ष46 बारप्राप्त होताहै।यदिएक सिक्केकोयादृच्छयाउछालाजाये, तो(i )...

In a class of 100 students, every student has passed in one or more of the three subjects, i.e. History, Economics and English. Among all the students , 24 students have passed in English only , 14 students have passed in History only, 11 students have passed in both English and Economics only, and 12 students have passed in both English and History only. A total of 50 students have passed in History. If only 5 students have passed in all three subjects, then how many students have passed in Economics only? 100 छात्रों की एक कक्षा में, प्रत्येक छात्र तीन विषयों यानी इतिहास, अर्थशास्त्र तथा अंग्रेजी में से एक या अधिक विषय में पास हुआ है | सभी छात्रों में से, 24 छात्र केवल अंग्रेजी में पास हुए हैं, 11 छात्र अंग्रेजी तथा अर्थशास्त्र दोनों में पास हुए हैं तथा 12 छात्र केवल अंग्रेजी और इतिहास में पास हुए हैं | इतिहास में कुल 50 छात्र पास हुए हैं | यदि सभी तीन विषयों में केवल 5 ही छात्र पास हुए हैं, तो केवल अर्थशास्त्र में पास करने वाले छात्रों की संख्या कितनी है ?

i^(n+100)+i^(n+50)+i^(n+48)+i^(n+46)

Divide: (i) 0.46 by 10 (ii)2.34 by 100 (iii) 6.28 by 1000

A coin is tossed 100 times and head appears 46 times. Now if we toss a coin at random, what is probability of getting (i) a head (ii) a tail.

Express each of the following in SI units : (i) 93 million miles (this is the distance between the earth and the sun). (ii) 5 feet 2 inches (this is the average height of an Indian female). (iii) 100 miles per hour (this is the typical speed ofRajdhani Express). (iv) 0.74 A (this is the bond length of hydrogen molecule). (v) 46^(@) C (this is the peak summer temperature in Delhi). (vi) 150 pounds (this is the average weight of an Indian male).

A class has 175 students, The following description gives the number of students studying one or more of the subjects in this class, Mathematics 100 , physics 70 , chemistry 46 , Mathematics and physics 30 , mathematics and chemistry 28 , physics and chemistry 23 , mathematics, physics and chemistry alone 18 , (i) how many students are enrolled in mathematics alone, physics alone and children alone, (ii) the number of students who have not offered any of these subjects.

The following pH range where the indicator shows change in colour are given i. 4 - 9.7 ii. 7.46-10.0 iii. 6.5-4 Which of the above pH range represent titration of I. Strong acid/strong base (S_(A)//S_(B)) , II. Weak acid/strong base (W_(A)//S_(B)) , III. Weak base/strong acid (W_(B)//S_(A))

On 30th June, 2016, the pass book of Nataraj showed a bank overdrat of 46,000. The following additional information is available. You are requred to prepare a bank reconciliation statement as on the above mentioned date : (i) Out of total cheques issued, cheques for ₹22,000 have not been presented for payment so far. (ii) Cheques paid into bank for collection, but not yet cleared total ₹31,000. (iii) Bank has charged ₹2,300 as interest on overdraft : it does not appear in chsh book. (iv) A customer has directly deposited ₹8,300 with bank in Nataraj's account for which there is no entry in cash book. (v) Dividend on shares collecteed by bank and credited in the pass book amounts to ₹2,000 for which no intimation has been given no Nataraj so far. (vi) A bill for ₹10,000 discounted with the bank was sishonoured on maturity. Bank has dibited nataraj with ₹10,100 insluding ₹100 for noting charges, the transaction has not yet been recorded in cash book.

Rama tested the solubility of four substances at different temperatures and found in grams of each substance dissolved in 100 g of water to form a saturated solution. {:(,"Substance dissolved",,"Temperature (K)",),(,"(in grams)","293 K","313 K","333 K"),(1.,"Ammonium chloride","37 g","41 g","55 g"),(2.,"Potassium chloride","35 g","40 g","46 g"),(3.,"Sodium chloride","36 g","36 g","37 g"),(4.,"Potassium nitrate","32 g","62 g","106 g"):} (i) Which substance is least soluble at 293 K. (ii) Which substance shows maximum change in its solubility when the temperture is raised from 293 K to 313 K ? (iii) Find the amount of ammonium chloride that will separate out when 55 g of its solution at 333 K is cooled to 293 K. (iv) What is the effect of temperature on the solubility of a salt ? (v) What mass of sodium chloride would be needed to make a saturated solution in 10 g of water at 293 K ?