__________ is equivalent to ten lakh in International System of numeration.
Fill in the blanks:
(a). 1 lakh = _________ ten thousand.
(b). 1 million = _________ hundred thousand.
(c). 1 crore = _________ ten lakh.
(d). 1 crore = _________ million.
(e). 1 million = _________ lakh.