Fill in the blanks with the correct tense of the verb from the given options: 

Mohan_____ rather tired today. 

निम्नलिखित संख्या-श्रृंखला में प्रश्नवाचक चिन्ह (?) के स्थान पर क्या आएगा?

17 52 158 477 ? 4310  .

A vexed problem facing us is the clamour to open more colleges and to reserve more seats for backward classes. But it will be a sheer folly to expand such facilities recklessly without giving any thought to the quality of education imparted. If admissions are made far more selective, it will automatically reduced the number of entrants. This should apply particularly colleges, many of which are little more than degree factories. Only then can the authorities hope to bring down the teacher-student ratio to manageable proportion. What is more, teachers should be given refresher courses, every summer to brush up their knowledge. Besides, if college managements increase their library budget it will help both the staff and the to new students a great deal. 
At the same time, however, it will be unfair to deny college education to thousands of young men and women, unless employers stop insisting on degrees even for clerical jobs. For a start, why can't the Government disqualify graduates from securing certain jobs, say class III and IV posts? Once the link between degrees and jobs is severed at least in some important departments, in will make young people think twice before joining college. 

What can automatically help to reduce admission:

यदि एक नाविक को कुछ दूरी धाराकी विपरीत दिशा और धारा की दिशा में पार करने में लगे समय का अनुपात 4 : 1 है । यदि धारा की गति 4.5 किमी/घण्टा है । तो नाव की गति ज्ञात करो । 

'जो वचन से न बताया जा सके' वाक्यांश के लिए उपयुक्त शब्द है 

'तिवारा कर' वसूला जाता था - 

जंग रहित लोहा बनाने में प्रयुक्त होने वाली महत्वपूर्ण धातु है –

चाक का रासायनिक नाम क्या है?